He wrote a letter ______ he explains what had happened in the accident.

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

I have heard a lot of good things about you         I came back from abroad.

A. since           B. until     C. before      D. when

___ you lose the paper document, sign in www. Sina.com, __ you might download all you need.  

A. If, which     B. So long as, what    C. In case, where   D. Even if, as

 Among all the birthday gifts ______ a DIY card, which I like best. 

A. is included      B. include            C. were included               D. including

 News came from the office __________ Wang Lin had been admitted to Beijing University.

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

She __________ have left school, for her bike is still here.

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

____ that we all went out, lying in the sun.

A. So fine was the weather                     B. So was the fine weather

C. The weather so fine was                     D. So the weather was fine

---“The last one ____ will pay for the meal.” ---“Agreed!”

A. to arrive        B. arrived C. arriving     D. arrives

Last night a fire in the hotel sent people ________out for safety.

A. to rush    B. to have rushed   C. rushing    D. from rushing

More than 200 dead pigs       in the waterways have raised urgent concern.

A. found             B. being found           C. to be found            D. having found