英语 英语 (28 16:56:43)

题目

英语 英语 (28 16:56:43)
1.Hello,I         you          in Beijing.How long have you been here?
  A.don’t know…are            B.haven’t know…are
  C.hadn’t know…were          D.didn’t know…were
2．
—The house looks terrible!
 —Yes,it is.I was told that it was at least 15 years since it             .
A.had painted           B.painted           C.had been painted       D.was painted
第2题答案为什么不选则D．而是C呢?
 

答案

1.D 过去不知道,现在知道了 所以用didn't,were
2.C 因为有since所以要用现在完成时,又因为前面是过去式,所以要用过去完成时