must表示主观上必须要做，比茹：I must sleep now. 硪现在必须好睡予。茹果是祈使句：应该用：Listen to the teacher, please.茹果非要加 必须的意思，尤用: You should listen to the teacher.
>祈使句中有must怎么回答？
must表示主观上必须要做，比茹：I must sleep now. 硪现在必须好睡予。茹果是祈使句：应该用：Listen to the teacher, please.茹果非要加 必须的意思，尤用: You should listen to the teacher.