Bobby ______ me your secret, but he meant no harm.

   A. shouldn’t have told          B. should tell

　 C. mustn’t have told           D. could tell

 We must do whatever we can to        the river being polluted any more.

   A. separate         B. keep              C. prevent          D. guard

 His success was because of ________ he had been working hard.

A. that B. the fact which C.the fact that D.the fact

 People will be encouraged to eat healthy food, ________ and to drink less beer and wine.

   A. not to smoke   B. don’t smoke    C. not smoke     D. not smoking

 ______ you don’t like him is none of my business. 

   A. What           B. Who                 C. That                 D. Whether

 Don’t try to cheat the taxman(税务人员); you’ll never ______it.

A. get out of       B. get into        C. get along        D. get away with

 If trees continue _______ at the present rate, it won’t be _______there is no trees for shade.

   A. to cut down; long before        B. being cut down; before long 

   C. to be cut down; long before      D. cutting down; before long

 We should spend the money ______ something _____ everyone.

A. in; that benefit       B. on; which benefit     

C. in; which benefits      D. on; that benefits

 Her brother ______ be at home now, because he was seen playing basketball in the stadium just now.

　 A. mustn’t     B. needn’t       C. can’t      D. shouldn’t

 Many festivals are held _______ our ancestors for their contribution to the world.

A. in honor of  B. in the honor of    C. in memory to   D. in the memory of