51. The scientists are trying to find out the facts to _______ their theory.

　　A. support B.carry C.design D.raise

　　52. The performance of the English team was ________. They played much worse than expected.

　　A. disappoint B. disappointing C. disappointed D. to disappoint

　　53. You are welcome to order the goods now. But payment should be made________.

　　A. for advance B. from advance C. in advance D. to advance

　　54. Speak louder so that you can make yourself _______.

　　A. heard B.to hear C.hearing D.have been heard

　　55. Now it won't be long before we meet again，________?

　　A.will it B.do we C.won't we D.does it

　　56. Americans eat______ vegetables per person today as they did in the 1960s.

　　A. more than twice B. as twice many

　　C. twice as many D. more than twice as many

　　57. I was so familiar with her that I recognized her voice ______ I picked up the phone.

　　A. the moment B. since C. before D. while

　　58. The education of ________ young is always ______ hot and serious topic.

　　A. /， / B. the， a C. /， the D. the， the

　　59. Dad wondered where I'd been，and I ________ a story about being at Grandma's

　　A. made out B. made up C. looked out D. looked up

　　60. Your sister doesn't study as _______ as you do.

　　A.hard B.hardly C.harder D.hardest

　　答案：A C C A A C D C A A