3.he must study English hard.(改为反问疑问句)3.he must study English hard,____ ______

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3.he must study English hard.(改为反问疑问句)3.he must study English hard,____ ______
3.he must study English hard.(改为反问疑问句)
3.he must study English hard,____ ______

3.he must study English hard.(改为反问疑问句)3.he must study English hard,____ ______
doen't he?

isn't it?

doesn't he?
这个是很常见的题型,he和 must 只见省略了一个does
所以反问应用doesn't

needn't he?
need 和 must 互用
he need study English hard,mustn't he?

needn't he?

mustn't he?