52.Be careful! The slightest touch can_______ the bomb.

A. set out　　　　 B. step out　　　　 C. set off　　　 D. step off

51.Sometimes the change of environment may greatly________ a student’s studies.

A. affect　　　　 　B. sense　　　　　 C. confuse　　　 D. hold

50.He didn’t work hard. That’s__________ he failed in the exam.

Ⅵ能力训练　　　　　　　　　　　　　　　　　　　　　　　　　　

49.The earth today is not______ it was millions of years ago.

48.He made a promise________ he would go all out for his country.

47.Word came__________ the Women’s Volleyball Team had won the championship.

46._____________ breaks the law shall be punished.

45._____________ the wounded soldier is still alive is a mystery.

43.I shall be able to tell________ men in my empire are unfit for their offices.

you tell me_________ I can get to the No.3 bus stop?

42.I wonder__________ you can help me or not.