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. The conference has been held to discuss the effects of tourism ______ the wildlife in the area.

   A. in               B. on               C. at                   D. with

 --- Jim failed again in the maths examination.

   --- Don't scold him too much. _____ , he has tried his best.

   A. After all            B. Above all         C. At all            D. In all

The elevator _________ and we were trapped inside for half an hour.

   A. broke off           B. broke in           C. broke out        D. broke down

 We were talking and laughing, when our teacher came in and asked us what all the  ______  was about.

   A. excite             B. exciting           C. excited           D. excitement

Sang Lan was so seriously injured that she was ______ to a top hospital in New York.

   A. rushed            B. rushing            C. going            D. gone

 This is not my car. It _________  one of my friends.

   A. is belonged to       B.  belongs          C. belongs to        D. is belonging to

. _____ to Beijing, I would visit the Forbidden City where the emperors once lived.

   A. If should I get       B. If I would get      C. Should I get       D. If I get

 Americans have something _______ Thanksgiving, a festival which celebrates the first harvest of the settlers who _____ from Europe to the USA.

   A. calling ; goes       B. calls ; going         C. which called; gone  D. called ; went

If you ______ the chat room ten minutes ago, you _______ what we were talking about.

   A. have joined ; will know                B. had joined ; would have known

   C. should join ; would know               D. would join ; have known

--- I will go to your place at 3:00 tomorrow afternoon.

  --- I’m sorry, but I ______ to Beijing by then.

   A. am flying         B. have flown        C. will have flown      D. will fly