30. _____, or you’ll miss the last train.

　 A. Hurried up　　　　　 B. Hurry up　　　　　 C. To hurry up　　　　　　　　　　 D. Hurrying up

29. I __________work when I was only ten years old.

　　　 A. must　　　　　　　　 B. have to　　　　　　　 C. mustn’t　　　　　　　　　　 D. had to

28. Although it was raining hard, _______ still went out.

　　　 A. they　　　　　　　　　 B. and they　　　　　　 C. but they　　　　　　　　　 D. since they

27. As a soldier, he always put the things __________ he could get them the moment he heard the order.

　　　 A. when　　　　　　　　 B. there　　　　　　　　 C. where　　　　　　　 D. which

26. The reason _________ he was late is ________ he was ill.

　　　 A. that, what　　　　　 B. that ,why　　　　　 C. why, that　　　　　 D. that ,that

25. The young man put out a fire ______________ in the new building yesterday.

　　　 A. happening　　　　 B. happened　　　　　 C. which happened　　　　 D. that was happened

24. The boy as well as his sister ___________ the museum.

　　　 A. are visiting　　　　 B. is visiting　　　　　 C. visit　　　　　　　　　 D. have visited

23.　 ________________ the same answer, he solved the problem a third time.

　　　 A. Having not　　　　 B. Not had　　　　　　 C. Having not got　 D. Not having got

22.　 The young trees _______ thirty years ago have become thick woods.

　　　 A. being planted　　 B. planted　　　　　　　 C. having planted　 D. planting

21.　 They have done something to prevented the air ________________.

　　　 A. from polluting　 B. being polluting　 C. from being polluted　 D. to be polluted