–ShallIhelpcleanthekitchen,Mom? –Thankyou.Butyou

问题详情：

 – Shall I help clean the kitchen, Mom? 

– Thank you. But you ________ it because I can do it myself.

A. mustn’t have done                    B. wouldn’t have done  

C. mightn’t have done                   D. don’t have to do

【回答】

D

知识点：情态动词

题型：选择题