=>

21. B let sb V : để ai làm gì

22. D help sb to V ~ help sb V

23. B told sb (not) to V : bảo ai (không) làm gì

24. B asked sb to V : yêu cầu ai làm gì

25. C expect to V : mong đợi

26. C told sb not to V

27. D used to V : đã từng

28. B (2 vế có cùng chủ ngữ -> rút gọn Having V3/ed, 2 hành động xảy ra theo thứ tự trước sau)

29. A have sb V

30. B told sb to V

31. C try Ving : thử làm gì

32. A avoid Ving : tránh

33. D bị động need Ving

34. A arrange to V : sắp xếp

35. B decide to V : quyết định

21. May I suggest you let _______.

A. Mary doing so

B. Mary do so

C. Mary does so

D. Mary to do so

=> let sb V: để ai làm gì

22. My father usually helps me_______ English.

A. to learn

B. learn

C. learning

D. both A and B are correct

=> help sb to V = help sb V

23. Mr. Brown told the schoolgirls_______ in class.

A. don't eat

B. not to eat

C. eat not

D. not eat

=> told sb to V 

24. President Roosevelt asked Archibald Mac Leish_______as the Librarian of Congress.

A. serving

B. to serve

C. to be served

D. served

=> asked sb to V 

25. This student expected_______ the first winner of the Grand Prix.

A. be

B. being

C. to be

D. will be

=> expect to V

26. He told Mary_______ up hope.

A. not give

B. do not give

C. not to give

D. to give not

=> told sb not to V

27. The Nusret used _______ a warship in the First World War.

A. to have been

B. be

C. to being

D. to be

=> used to V

28. _______ all the homework, I went to bed.

A. Have finished

B. Having finished

C. To finish

D. Finish

29. I had my brother _______ my suitcase.

A. carry

B. carried

C. to carry

D. to carried

=> have sb V

30. The school superintendent told me_______.

A. hurrying up

B. to hurry up

C. hurry up

D. hurried up

=> told sb to V

31. If you can't turn the key, try _______ some oil in the lock.

A. to put

B. put

C. putting

D. puts

=> try + Ving 

32. She should avoid _______other people’s feeling.

A. hurting

B. to hurt

C. hurt

D. hurts

=> avoid + Ving 

33. Our house needs_______.

A. to paint

B. to be painting

C. to be paint

D. painting

34. I arranged _______ the American businessmen on behalf of my company.

A. to meet

B. met

C. to be meet

D. meets

=> arrange to V

35. I decided _______ to the theatre myself as the others didn't want to come with me.

A. go

B. to go

C. going

D. gone

=> decide + to V

Cho mìn xin ctlhn nhé!
@Bbi Ngọc <3