1. Do you think he will do me a favor ?
As far as I know, he is the last one to help others. He _____ be prepared to give you a hand, though.
A. might B. must C. can D. should
分析:本题考查情态动词推测性用法。 根据he is the last one to help others.(他是最不可能帮助别人的人),既然如此,那么帮助你的可能性也就最小了。 答案为A
2. Look, someone is coming. Guess who it ____ be ?
I think it ___ be Tom.
I dont think it ___ be ____ .
A. can ; must ; can ; he B. may ; can ; must ; him
C. must ; can ; must ; his D. might ; must ; can ; himself
分析:根据备选答案。 can表示推测时用于疑问句或否定句中。本题首句就应该是Guess who can it be? 第二句应该是I think it must be Tom.(说话人十分肯定)。第三句表达了说话人对前一个人的否定。即:I dont think it can be him/he.(不可能是他)。答案为A
3. Do you know Ms. Wang likes walking after supper ?
Sure. She ____ around the campus now.
A. must be walking B. must walk
C. may walk D. may be walking
分析:关键词Sure告诉我们说话人的口气十分肯定。根据句子语境:她此刻肯定正在校园散步呢。must be doing表示肯定正在做。答案为A
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