20、____ our country has so many good table-tennis players, we have to decide on the best ones to take part in the game.

A. As      B. Since       C. If        D. While

18、--- She must have gone back to the valley.

--- No, she ___. The entrance to it was nowhere to be found.

A. mustn’t                  B. needn’t              C. couldn’t            D. hadn’t

17、Mr. Smith, along with Mr. Green, ___ coming to speak to us about Chinese literature and painting tomorrow afternoon.

A. is                   B. are                 C. was               D. were

16、Before the war broke out, many people ___ in safe places possessions they could not take with them.

A. threw away      B. put away            C. gave away     D. carried away

15、I had neither a computer nor newspaper. ___ I don’t know the latest news.

A. It’s the reason    B. It’s why             C. There’s why    D. That’s why

14、We agreed to accept ___ they thought was one of the best tourist guides.

A. whatever        B. whomever   C. whichever     D. whoever

13、___ the new policy, we are now having a happy life.

A. Thanks to              B. Because                 C. For                  D. Thanks for

12、You can’t imagine what a great trouble they will have ___ the problems ___ now.

A. to solve; being discussed         B. to solve; to talk about

C. solving; being talked about        D. solving; to discuss

11、We’ve just heard a warning on the radio that a hurricane is ___ to come this evening.

A. likely       B. possible          C. probable         D. believable