问题描述：
3.--- ____ the sports meet might be put off． --- Yes,it all depends on the weather．
A． I've been told B． I've told C． I'm told D． I told,但是想问下为什么不选C?
还有
4.I need one more stamp before my collection ___.
A.has completed B.completes C.has been completed D.is completed答案选D,为什么不选C?
5.Rainforests ___ and burned at such a speed that they will disappear from the earth in the near future.
A.cut B.are cut C.are being cut D.had been cut答案选C,而不选B?
A． I've been told B． I've told C． I'm told D． I told,但是想问下为什么不选C?
还有
4.I need one more stamp before my collection ___.
A.has completed B.completes C.has been completed D.is completed答案选D,为什么不选C?
5.Rainforests ___ and burned at such a speed that they will disappear from the earth in the near future.
A.cut B.are cut C.are being cut D.had been cut答案选C,而不选B?
问题解答：
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