33. It’s high time that we __________ our rivers and lakes clean.

A. tried keeping　　　　 B. tried to keep　　　　　 C. try to keep　　　 D. must try to keep

32. Li Ming 　　　　　　　　　　 　to go abroad.

A. was determined　　 B. was determining　　　 C. determined　　 D. Either A or C

31. The boy student failed in the exam. He seemed 　　　　　　　 　his lessons.

A. to have not gone over　　　　　　　　　　　　　　 B. not to have gone over

C. not to go over　　　　　　　　　　　　　　　　　　　　　　　　 D. to not go over

30. -Look! How beautiful the girl models on the T-stage!

　　-Such 　　　　　　　　　　 　models.

A. is the 21st century’s　　　　　　　　　　　　 B. are the 21st century

C. are the 21st century’s　　　　　　　　　　　 D. is the 21st century

29. All of you can join in the discussion if you 　　　　　　　　　　　　　　 .

A. wish to　　　　　　　　 B. want to join　　　　　　　　　 C. don’ wish to　　　　　 D. hope so

28. He apologized to me for his 　　　　　　　　 　my letter.

A. delaying answering 　　　　　　　　　　　　 B. delay to answer

C. delay answering　　　　　　　　　　　　　　　 D. delaying to answer

27. In the dark street, there wasn’t a single person 　　　　 　she could turn for help.

A. that　　　　　　　　 B. who　　　　 C. from whom 　　　　　 D. to whom

26. When 　 　　　why he remained outside the shop 　　　time, the young man said nothing to us.

A. questioned, at such late　　　　　　　　　　 B. being questioned, at so late

C. questioning ,at such late　　　　　　　　　 D. questioned, in such late

25. Let Harry play with your toy as well, John you must learn to 　　　 .

A. support　　　　　　　　 B. care　　　　　　　　 C. spare　　　　　　　 D. share

24. His suggestion 　　　　　 　to watch the football match excited every one of us.

A. that we go　　　　　　　　　　　　　　　　　　　　　　　 B. which we should go

C. that we would go　　　　　　　　　　　　　　　　　　 D. when we should go