It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .   

A. has been selected   B. had been selected   C. has selected  D. selected 

Unless ________ , the murderer is likely to commit similar or further offences.

A. to arrest  B. arrested  C. been arrested  D. arresting

Common people always hold the view       the experts say is right.

A. what that         B. that what           C. that         D. all which

BP will continue to be focused on making sure that the costs ________with oil spill cleanup in the Gulf of Mexico are paid.

A. covered           B. filled               C. occupied     D. associated

— I’m not good at dancing, you know.

—       . It’s just for fun.

A. All right                                B. No problem               C. Come on                    D. Cheer up

____ no cash for food, he broke into an old woman’s house, hoping to steal some money.

A. Because                              B. As                         C. Since                              D. With

______ it have been the failure to pick up directions from the ground control that caused the air crash?

A. Must              B. Could                              C. Would                        D. Should

Only __ as an interpreter __ how important it was to practise speaking English.

A. when did I work...I realized       B. when did I work...did 1 realize

C. when I work...did I realize        D. when I worked...did I realize

Garter Druse _____ his being selected for the important task to his courage，devotion and knowledge of the area.

A. led 　　　   　  B. owed        C. devoted                          D. thanked

The concert _______ many foreign students were invited was a feast for the eyes.

A. for which                 B. to which      C. in which                    D. on which