57. I am sure you will excuse me _____ not telling you ahead of time.

A. from                        B. for                           C. since                        D. At、

37. The boy is curious _____ everything. I am sure he is very clever.

A. to                            B. about                       C. with                         D. In

17. Hunan lies _____ such provinces as Hubei, Jiangxi, Guangdong, Guizhou and Chongqin.

A.among                      B. above                       C. beside                      D. Between

106._________ worries me the way he keeps changing his mind.

A．This                  B．That             C．What           D．It

86. The number of people invited __________ fifty, but a number of them __________ absent for different reasons

were ; was         B .was ; was         C. was ; were        D. were ; were

66. Is＿possible to fly to the moon in a spaceship?

A. now             B. man              C. that           D. it

46 Our manager allowed _______to take a holiday next week.

you and I          B. yourself and me     C.I and you     D. you and me       

Nothing is wrong with the radio___________?

A.isn't it　　　    B.is that　　　   C.is it　　　    D.isn't that

6.I don’t think ____ possible to master a foreign language without much memory work.

A. this　         B. that 　         C. its         D. it　　

28．The moment she heard Mr. Baker’s angry voice on the phone, she ____what she would have to face.

A. had sensed      B. has sensed           C. sensed        D. would sense