题目内容
1.-Finally,they came back.-They ______be hungry after such a long walk.( )
| A. | can't | B. | must | C. | needn't |
分析 --他们终于回来了.
--走了这么长的路他们一定饿了.
解答 答案:B.
can't不可能;must一定,必须;needn't不必.根据 after such a long walk,可知走了这么长的路他们一定饿了.must一定,必须.故选B.
点评 本题考查了情态动词的用法.熟知句意以及所给选项的意思是解答本题的关键.
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