15. The children are looking forward to ………..on holiday.
a. go b. going c. be going d. have gone
16. You must try not …….so many mistakes again.
a. make b. making c. to make d. makes
17. He advised me …………….at this time.
a. not to go out b. not go out c. not going out d. not to going ut
18. We always expect ……….as many good marks as possible.
a. getting b. get c. to getting d. to get
19. This book is worthy ………for us.
a. to read b. reading c. read d. be read
20. I have trouble ………late at nights
a. work b. to work c. working d. works