you go to the party if you don't finish your homework

问题描述:

you go to the party if you don't finish your homework
You _______go to the party if you don’t finishyour homework first.
A.won’t B.don’t C.oughtn’t D.shan’t
为什么选D不选C

选D ,shall带有责任、义务的强烈语气,表示作业应该做完了你才能去,做作业是你的责任义务