题目内容
You ____be tired—you have worked only for ten minutes．
| A．won’t | B．mustn’t | C．needn’t | D．can’t |
D
解析
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You _____ be tired; you have been working for so long a time,
but he _____ be tired; he has just begun to work.
|
A．may not; must |
B．must; may not |
C．can’t; must |
D．must; can’t |