题目内容
—Guess what?I came first in that contest.
—Great!You ________ a lot during the past two weeks.
A.must practise?? ????????????? B.should practise
C.should have practised?? ????????????? D.must have practised
【答案】
D
【解析】在比赛中得了第一名一定是经过很多练习换来的,所以D项must have practised符合语意,表示对过去情况的肯定推测。
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