It was a real race ___ time to get the project done. Luckily we made it.

A. by        B. against       C. over       D. for 

'' You can't judge a book by its cover,'' _______.

A. as the old saying goes           B. as the saying goes old    

C. goes as the old saying           D. goes as the old saying

 There is no way of knowing why one man makes an important discovery ___ another, also intelligent, failed.

 A. while        B. if       C. since        D. as  

 When I first met Byran I didn't like him. but I ____ my mind.

A. would change      B. change    C. have changed   D. had changed   

 Police have found ____ appears to be the lost ancient statue.

  A. which       B. what     C. where      D. how  

 If we ____ now to protect the environment, we will live to regret it.

  A. hadn't acted     B. haven't acted      C. won't act    D. don't act 

  They urged that the Science Museum _______ open during the vacation.

 A. be kept      B. were kept       C was kept                     D. will be kept       

 Just be patient. You _____ expect the world to change so soon.

A. needn't        B. may not       C. won't          D. can't

 _______ bicycles, our factory also produces motorbikes and motorcars.

 A. Except            B. Except for      C. Beside     D. Aside from

 All we could do was _______ at home and _______  for the results.

 A. staying; waiting                   B.  to stay; waited     

 C. stay; wait                            D. to stay; waiting