we must listen to the teacher carefully in class同题,改为否定句和一般疑问句

问题描述:

we must listen to the teacher carefully in class
同题,改为否定句和一般疑问句

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否定句:We can't listen to the teacher carefully in class.
疑问句:Must we listen to the teacher carefully in class?

we need not listen to the teacher carefully in class.
must we listen to the teacher carefully in class?