题目内容
"What ______ you ______ when the man was killed?" asked the policeman.
[ ]
A.did, do B.have, done C.are, doing D.were, doing
答案:D
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题目内容
"What ______ you ______ when the man was killed?" asked the policeman.
[ ]
A.did, do B.have, done C.are, doing D.were, doing