mustn't 表示“不可以;禁止”,分析题意可知第二个空表示某种可能性,故本题选B。
10) —Will you stay for lunch
—Sorry, ______. My brother is coming to see me. (NMET'99)
A.I mustn't B.I can't C.I needn't D.I won't
分析题意可知因为“我弟弟要来看我”,所以“不能留下”,因此对别人的邀请或要求应给予礼貌的拒绝。A 项表示“禁止”;C项表示“不必要”;而D项表示“不会”,均不符合题意。故本题选B。又如:
—Could I borrow your dictionary?
—Yes, of course you _____.(MET'92)
A.might B.will C.can D.should (C)
11)—When can I come for the photos? I need them tomorrow afternoon.
—They _____ be ready by 1200. (NMET'98)
A.can B.should C.might D.need
该题考查情态动词should的基本含义,分析句意可知本题应选B。又如:
The old man is always hunting the lions, so terrible things ____ happen to him.(上海'96)
A.might B.would C.should D. could 烠
12)The fire spread through the hotel very quickly but everyone ____ get out.(NMET'97)
A.had to B.would C.could D.was able to
该题考查了could和be able to的区别,二者都可表示过去时间的能力,但如果表示过去成功地做了某事只能使用was / were able to do,故本题选D。
13)—Shall I tell John about it?
—No, you ___.I've told him already. (NMET'94)
A.needn't B.wouldn't C.mustn't D.shouldn't
情态动词shall在试题中表示征询对方意见或请求指示。答句暗示 “没有必要了”,故本题选A。