why为什么选A呢?又为什么不选B 和D呢
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why为什么选A呢?又为什么不选B 和D呢
27.—There aren't any toys in our suitcase.Where have you put them?
—Oh,no.That old lady sitting next to us ______ have taken ours by mistake.
A.must B.could C.should D.would
为什么选A呢?又为什么不选B 和D呢
27.—There aren't any toys in our suitcase.Where have you put them?
—Oh,no.That old lady sitting next to us ______ have taken ours by mistake.
A.must B.could C.should D.would
为什么选A呢?又为什么不选B 和D呢
![why为什么选A呢?又为什么不选B 和D呢](/uploads/image/z/7121167-7-7.jpg?t=why%E4%B8%BA%E4%BB%80%E4%B9%88%E9%80%89A%E5%91%A2%3F%E5%8F%88%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E9%80%89B+%E5%92%8CD%E5%91%A2)
must have done表示推测过去一定或必然做了什么事.
再问: could have done 和那个would have done呢
再问: could have done 和那个would have done呢