51. What subject is the man teaching? (A) Physics B) Chemistry C) Biology D) Astronomy
52. Does the teacher use different methods of teaching
during the lesson?
A) Yes, he do
B) No, he does
C) Yes, he does
D) No, he don't
53. What is the teacher doing?
A) Singing B) Conducting an experiment
C) Writing D) Washing the flasks
54. What does the teacher not use to protect himself
from accidents?
A) Gloves B) Goggles C) A robot D) A lab coat
55. What are there on the shelves and desks?
A) Vases B) Gadgets C) Test tubes and flasks D) Journals
56. What (unusual) clothes is the teacher wearing?
A) A sweater B) A jacket C) A lab coat D) A hat
57. How many pupils are willing to answer?
A) One B) Three C) All pupils D) Nobody
58. How many people wearing glasses do you see?
A) One B) Two C) Three D) Four
59. You don't see this/these on the walls.
A) A blackboard B) A clock C) Maps D) The periodic table
60. How many chemical elements are written above the
blackboard?
A) One B) Three C) Five D) Seven
Level IV​

Sure, I'll be happy to help you with that! Here's the recipe with the missing words from Exercise 1:

"Easy pizza recipe

First, spread the tomato sauce thickly over the pizza base. Next, thinly slice the onions, red pepper, and mushrooms. Then, arrange the onion and tomato rings over the tomato sauce. Finally, grate the cheese and sprinkle it over the vegetables. Place the pizza in the oven for 10-15 minutes.

Potato salad

Boil the potatoes until they are tender. Once cooked, allow them to cool. After they have cooled down, peel the skins off and cut the potatoes into cubes. In a separate bowl, mix the mayonnaise, mustard, salt, and pepper together. Then, add the diced onions and pickles to the mixture. Finally, combine the potatoes and the dressing, making sure all the potatoes are coated evenly. Refrigerate for at least an hour before serving."

Explanation:

To complete the recipe, we need to choose the correct words from Exercise 1 and place them in the appropriate order.

In the easy pizza recipe, we start by spreading the tomato sauce over the pizza base. Then, we need to thinly slice the onions, red pepper, and mushrooms. Next, we arrange the onion and tomato rings over the tomato sauce. Finally, we grate the cheese and sprinkle it over the vegetables. The pizza is then placed in the oven for 10-15 minutes to cook.

For the potato salad recipe, we begin by boiling the potatoes until they are tender. Once they are cooked, we allow them to cool before peeling off the skins and cutting them into cubes. In a separate bowl, we mix together the mayonnaise, mustard, salt, and pepper to make the dressing. Then, we add the diced onions and pickles to the dressing. Finally, we combine the potatoes and the dressing, making sure that all the potato cubes are coated evenly. The potato salad is then refrigerated for at least an hour before serving.

I hope this explanation and step-by-step solution helps you understand the recipe better! Let me know if you have any further questions.

1. If you want to succeed in life, you'll have to work harder.
Explanation: The phrasal verb "succeed in" is used to convey the idea of achieving success or reaching one's goals in life.

2. We'll have to leave before lunch time if we want to get there in time.
Explanation: The phrasal verb "leave before" means to depart or start a journey prior to a specific time. In this case, it is used to indicate the need to depart early to arrive on time.

3. You'll fall behind with your work if you don't get on with it.
Explanation: The phrasal verb "fall behind with" implies being delayed or not keeping up with a task or responsibility. In this context, it means that not making progress with the work will result in being behind schedule.

4. I wanted to go to bed but she stayed up till one o'clock in the morning.
Explanation: The phrasal verb "stay up" means to remain awake or not go to bed at the usual time. In this sentence, it is used to express that the person stayed awake until one o'clock in the morning instead of going to bed.

5. It's about time you put in some hard work, isn't it?
Explanation: The phrasal verb "put in" means to invest effort or work into something. In this case, it is used to suggest that it is necessary or overdue for the person to start working hard.

6. Why don't you take up a sport now that you have all this free time?
Explanation: The phrasal verb "take up" means to start or begin a new activity or hobby. In this sentence, it suggests the idea of starting a sport as a way to utilize the extra free time available.

7. I'm going to cut down on eating red meat after all these reports.
Explanation: The phrasal verb "cut down on" means to reduce or decrease the amount of something. In this context, it is used to express the intention of reducing the consumption of red meat following the reports.

8. Can you put him up in prison.
Explanation: The phrasal verb "put...up" can mean to provide accommodation or lodging for someone. In this sentence, it is used to ask if the person can provide or arrange accommodation for someone in prison.

9. If he keeps on breaking the law like that, he'll end up in prison.
Explanation: The phrasal verb "end up" means to finally or ultimately reach a specific situation or place. In this case, it expresses the outcome or result of continuously breaking the law as being imprisoned.

10. What do you want to be when you grow up?
Explanation: The phrasal verb "grow up" means to mature or reach adulthood. In this sentence, it is used to inquire about the person's desired occupation or career in the future.