43.We ________(目击) the great change in the city.

42.The streets in the centre of the city were c________ up with traffic.

41．He m_______ the supermarket when the owner was away.

40. If the ______(细微的) change isn’t detectable by our measuring instruments, then we won’t be able to predict which final state will occur.

36. Two men d_____ in the Coal River, one while helping his son, the other while trying to save the father. 37. They kept asking if I was ok and called an a______ because they thought I was badly hurt. 38. A ceremony was held in h____ of the first police officer to be murdered on duty. 39. I gave ______(解释) in English to the kids who couldn’t understand Chinese.

30. I`d rather you 　　　　　their invitation yesterday.

A. not accept　　　　 B. wouldn`t accept　　 C. didn`t accept　 D. hadn`t accepted

29. It is demanded that everyone　　　 　in his seat at 7 tomorrow morning.

A. is　 　　　　B. be　 　　　　　C. would be　　　 　　　D. will be

28. If I 　　　　to school tomorrow, I　　　　　 my lessons now.

A. were to go; would do　 　　　　　　B. would go ; would do

C. went; did　　　　　　　　　　　 D. should go; am doing

27. If he 　　　　　his legs in the last training, he 　　　　the coming World Cup, which he has been longing to compete in.

A. hadn`t hurt; would join in　　 　　　B. hadn`t hurt; would have taken part in　

　C. didn`t hurt; would go in for 　　　　D. didn`t hurt; would have taken part in