Please ____look outside.look at the black board.A not B don't C can't 为什么

问题描述:

Please ____look outside.look at the black board.
A not B don't C can't 为什么

正确:B
这是个否定祈使句。
原句:Please look outside....=Look outside...., please.
否定句:Please don't look outside....=Don't look outside...., please.

B don't
因为是祈使句

B
祈使句的否定句是DON‘T 开头.
加油!不明白再问!