题目内容
This cake is very sweet. You _____ a lot of sugar in it.
| A.should put | B.could have put | C.might put | D.must have put |
D
由前面的提示“蛋糕很甜”可知是“你一定是在里面放了很多糖”,故选D。must have done表示对过去情况的肯定的推测,“过去一定做某事。”
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