The room must be aired
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The room must be aired
请问1 为什么be要用原形?
2 must 本身就有必须的意思?为什么要跟个be? 就算must be是固定搭配,must 本身有必须的意思 不加be不可以吗?
请问1 为什么be要用原形?
2 must 本身就有必须的意思?为什么要跟个be? 就算must be是固定搭配,must 本身有必须的意思 不加be不可以吗?
![The room must be aired](/uploads/image/z/8096423-23-3.jpg?t=The+room+must+be+aired)
1 must后跟动词原形
2 因为aired是形容词,必须要与be 在一起才能放在must后面,因为must后只能跟动词,不直接跟形容词
2 因为aired是形容词,必须要与be 在一起才能放在must后面,因为must后只能跟动词,不直接跟形容词
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