Choose the correct option. 1. every boy and girl in this room answer a. knowing b. know c. knows d. have known 2. a number of students in the exam. a. fail b. failing c. to fail d. fails 3. half of the money mr. lam a. belongs b. belong c. to belong d. belonging 4. the pilot along with his passengers last night. a. have been b. was c. is d. am 5. two weeks when you are on vacation. a. going b. to go c. have gone d. goes 6. many of the girls in this school shirts. a. wear b. wears c. has worn d. worn 7. three kilos of potatoes basket heavier. a. to make b. making c. makes d. make 8. some of the tables in the classroom . a. is b. were c. been d. to be 9. we had a river a. in which we could swim b. to swim c. for us to swim d. all are correct 10. the child would be happier if he had someone with a. that he could b. for him c. for him to d. a and c are correct