题目内容
—May I smoke here? —If you _____, choose a seat in the smoking section.
A.should | B.could | C.may | D.must |
D
解析试题分析:这是一组对话。上文,我可以在这里吸烟吗?下文,如果你必须吸烟的话,在吸烟区选择一个座位。Must表示必须,故选D。
考点:情态动词的考查
点评:情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语。
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