答案:A
who 作主语,谓语动词用单数形式,而这里put没有加S,说明用的过去式,所以后面用did.
---Who put the cat in the box?---Andy______.
---Who put the cat in the box?---Andy______.
A.did B.does C.is D.do
A.did B.does C.is D.do
英语人气:706 ℃时间:2020-04-18 11:56:29
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