you had better study hard,_____ _____?

问题描述:

you had better study hard,_____ _____?

HADN'T YOU

陈述部分为had better +V,后面的反问疑问句用hadn't you
所以答案为hadn't you

don't you

hadn't you

hadn't you ?

hadn”t you?

hadn't you?

will you?(反意疑问句中主句有had better do...结构,问句用will+主语)