you___do it if you don't want to.A.haven't to B.needn't

问题描述:

you___do it if you don't want to.A.haven't to B.needn't

B.needn't

B.

you___do it if you don't want to.
选B,因为下面是我做过的题
You needn’t do it even if you don’t want to.