He was today, but was asked to stay for week. A.to have returned, another B.retu
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He was______today, but was asked to stay for______week.
A.to have returned； another B.returning； one more
C.returned； another D.to return； other
试题答案
A
be to＋have done结构,表示本应该做某事,但事实上却没有做。