I. what time the film (to start)? 2. he (to write) the composition all evening. 3. our school volleyball team (to play) every saturday. 4. we (to have) a music class this friday. 5. ann always (to lose) my keys. 6. john (to wait) for his coffee for half an hour. 7. my friends (to leave) for germany in two days. they already (to book) the tickets. s. i (not hear) from you for ages. 9. my brother (to study) chemistry at the university. 10. laura (to bake) the cake today. 11. i (to have) a turtle. 12. she (to have) a shower. 13. how (to be) very happy because he (to enter) the university. 14. my younger sister (to eat) three ice creams today. 15. i (to tidy) my room since morning. 16. their air jet (to arrive) at 7 in the evening. 17. listen! mary (to cry). 18. next week we (to swim) in the mediterranean sea. 19. she always (to use) my netbook without asking. 20. my friend and i seldom (to go) clubbing

I. What time does the film start?
To answer this question, we need to use the present simple tense. In this tense, we add an -s or -es to the verb when the subject is he/she/it. In this sentence, the subject is "the film," so we need to use the third person singular form of the verb "to start," which is "starts." Therefore, the correct answer is: "What time does the film start?"

2. He has been writing the composition all evening.
To answer this question, we need to use the present perfect continuous tense. This tense is used to talk about an action that started in the past and is still happening or has just finished. In this sentence, the subject is "he," and the verb "to write" should be in the present perfect continuous form, "has been writing." Therefore, the correct answer is: "He has been writing the composition all evening."

3. Our school volleyball team plays every Saturday.
To answer this question, we need to use the present simple tense. In this tense, we use the base form of the verb for all subjects. In this sentence, the subject is "our school volleyball team," and the verb "to play" should be in the present simple form, "plays." Therefore, the correct answer is: "Our school volleyball team plays every Saturday."

4. We will have a music class this Friday.
To answer this question, we need to use the future simple tense. In this tense, we use the modal verb "will" followed by the base form of the verb. In this sentence, the subject is "we," and the verb "to have" should be in the future simple form, "will have." Therefore, the correct answer is: "We will have a music class this Friday."

5. Ann always loses my keys.
To answer this question, we need to use the present simple tense. In this tense, we add an -s or -es to the verb when the subject is he/she/it. In this sentence, the subject is "Ann," and the verb "to lose" should be in the present simple form, "loses." Therefore, the correct answer is: "Ann always loses my keys."

6. John has been waiting for his coffee for half an hour.
To answer this question, we need to use the present perfect continuous tense. This tense is used to talk about an action that started in the past and is still happening or has just finished. In this sentence, the subject is "John," and the verb "to wait" should be in the present perfect continuous form, "has been waiting." Therefore, the correct answer is: "John has been waiting for his coffee for half an hour."

7. My friends are leaving for Germany in two days. They have already booked the tickets.
To answer this question, we need to use the present continuous tense and the present perfect tense. In the first sentence, we use the present continuous tense to talk about a planned action in the future. In the second sentence, we use the present perfect tense to talk about a completed action in the past with a result in the present. Therefore, the correct answer is: "My friends are leaving for Germany in two days. They have already booked the tickets."

8. I haven't heard from you for ages.
To answer this question, we need to use the present perfect tense. This tense is used to talk about an action that happened at an unspecified time before now. In this sentence, the subject is "I," and the verb "to hear" should be in the present perfect form, "haven't heard." Therefore, the correct answer is: "I haven't heard from you for ages."

9. My brother is studying chemistry at the university.
To answer this question, we need to use the present continuous tense. This tense is used to talk about an action happening at the moment of speaking or around the current time. In this sentence, the subject is "my brother," and the verb "to study" should be in the present continuous form, "is studying." Therefore, the correct answer is: "My brother is studying chemistry at the university."

10. Laura is baking the cake today.
To answer this question, we need to use the present continuous tense. This tense is used to talk about an action happening at the moment of speaking or around the current time. In this sentence, the subject is "Laura," and the verb "to bake" should be in the present continuous form, "is baking." Therefore, the correct answer is: "Laura is baking the cake today."

11. I have a turtle.
To answer this question, we use the present simple tense. In this tense, we use the base form of the verb for all subjects. In this sentence, the subject is "I," and the verb "to have" should be in the present simple form, "have." Therefore, the correct answer is: "I have a turtle."

12. She is having a shower.
To answer this question, we need to use the present continuous tense. This tense is used to talk about an action happening at the moment of speaking or around the current time. In this sentence, the subject is "she," and the verb "to have" should be in the present continuous form, "is having." Therefore, the correct answer is: "She is having a shower."

13. How happy is he because he has entered the university.
To answer this question, we need to use the present simple tense and the present perfect tense. In the first sentence, we use the present simple tense to talk about a general state. In the second sentence, we use the present perfect tense to talk about a completed action in the past with a result in the present. Therefore, the correct answer is: "How happy is he because he has entered the university."

14. My younger sister has eaten three ice creams today.
To answer this question, we need to use the present perfect tense. This tense is used to talk about an action that happened at an unspecified time before now. In this sentence, the subject is "my younger sister," and the verb "to eat" should be in the present perfect form, "has eaten." Therefore, the correct answer is: "My younger sister has eaten three ice creams today."

15. I have been tidying my room since morning.
To answer this question, we need to use the present perfect continuous tense. This tense is used to talk about an action that started in the past and is still happening or has just finished. In this sentence, the subject is "I," and the verb "to tidy" should be in the present perfect continuous form, "have been tidying." Therefore, the correct answer is: "I have been tidying my room since morning."

16. Their air jet arrives at 7 in the evening.
To answer this question, we need to use the present simple tense. In this tense, we use the base form of the verb for all subjects. In this sentence, the subject is "their air jet," and the verb "to arrive" should be in the present simple form, "arrives." Therefore, the correct answer is: "Their air jet arrives at 7 in the evening."

17. Listen! Mary is crying.
To answer this question, we need to use the present continuous tense. This tense is used to talk about an action happening at the moment of speaking or around the current time. In this sentence, the subject is "Mary," and the verb "to cry" should be in the present continuous form, "is crying." Therefore, the correct answer is: "Listen! Mary is crying."

18. Next week we will swim in the Mediterranean Sea.
To answer this question, we need to use the future simple tense. In this tense, we use the modal verb "will" followed by the base form of the verb. In this sentence, the subject is "we," and the verb "to swim" should be in the future simple form, "will swim." Therefore, the correct answer is: "Next week we will swim in the Mediterranean Sea."

19. She always uses my netbook without asking.
To answer this question, we need to use the present simple tense. In this tense, we add an -s or -es to the verb when the subject is he/she/it. In this sentence, the subject is "she," and the verb "to use" should be in the present simple form, "uses." Therefore, the correct answer is: "She always uses my netbook without asking."

20. My friend and I seldom go clubbing.
To answer this question, we need to use the present simple tense. In this tense, we use the base form of the verb for all subjects. In this sentence, the subjects are "my friend and I," and the verb "to go" should be in the present simple form, "go." Therefore, the correct answer is: "My friend and I seldom go clubbing."