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——Will you stay for lunch?
——Sorry,       . My brother is coming to see me.
A.I mustn’tB.I can’tC.I needn’tD.I won’t
B

试题分析:考查情态动词。Mustn’t禁止,千万不能;can’t不可能;needn’t不必;won’t不会;句意:—你会留下来吃午饭吗?—对不起,我不能留下来吃午饭。我的兄弟要来我看我。根据My brother is coming to see me.说明我要留下来吃饭是不可能的事情,故B正确。
点评:本题考查了情态动词的否定式的用法,要特别注意mustn’t并不表示不必,而表示禁止,千万不能。所以我们既要注意情态动词的肯定式的用法也要注意其否定式的意思。
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