来自陈小惠的问题
.--MustIfinishmyhomeworknow?--No,you_______Youcandoittomorrow谁能告诉我为什么这里填needn't
.--MustIfinishmyhomeworknow?
--No,you_______Youcandoittomorrow谁能告诉我为什么这里填needn't


.--MustIfinishmyhomeworknow?--No,you_______Youcandoittomorrow谁能告诉我为什么这里填needn't
.--MustIfinishmyhomeworknow?
--No,you_______Youcandoittomorrow谁能告诉我为什么这里填needn't
Must提问,否定回答必须使用needn't.
英语中的规定,记住就行了.