题目内容
---Who is the tallest boy?
---It ______ be John. John is of medium height.
- A.must
- B.needn’t
- C.might
- D.can’t
D
John is of medium height.约翰是中等高度。从这句话来看,前面应为否定句。只有D选项can’t(不能)符合题意。
John is of medium height.约翰是中等高度。从这句话来看,前面应为否定句。只有D选项can’t(不能)符合题意。

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