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IfHarrydidnotattendtheconferencelastnight,hetoomuchworktodo.A.musthavehadB.musthaveC.hadhadD.hadtohavehad选好之后讲理由,
题目详情
If Harry did not attend the conference last night,he _______ too much work to do.
A.must have had
B.must have
C.had had
D.had to have had
选好之后讲理由,
A.must have had
B.must have
C.had had
D.had to have had
选好之后讲理由,
▼优质解答
答案和解析
A肯定的推测,有if 引导的从句,主句用过去时,从句要用现在完成时
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