why does he must leave early? 是对的还是错的 . 为什么

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why does he must leave early? 是对的还是错的 . 为什么

why does he must leave early? 是对的还是错的 . 为什么
why does he must leave early? 是对的还是错的 . 为什么

why does he must leave early? 是对的还是错的 . 为什么
错的,must 是情态动词,不能用does提问.应该是:
Why must he leave early?

错的。why must he leave early?must是情态动词,其疑问句直接将情态动词提前。