题目内容
The student must have been ill yesterday, ______?
| A．mustn’t he | B．needn’t he | C．didn’t he | D．wasn’t he |
D
解析
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题目内容
The student must have been ill yesterday, ______?
| A．mustn’t he | B．needn’t he | C．didn’t he | D．wasn’t he |
D
解析