---- Finally, they came back.----They ________ be hungry after such a long walk.
---- Finally, they came back.----They ________ be hungry after such a long walk.
A、can’t
B、must
C、needn’t
D、mustn’t
【正确答案】:B
【题目解析】:must一定句意:—最后,他们回来了。—走了这么远的路,他们一定饿了。最后,他们回来了。走了这么远的路,他们一定饿了。
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