题目内容
-Must I finish cleaning the house before supper?
-No.You ________ if you have something else to do.
[ ]
A.mustn't
B.couldn't
C.can't
D.don't have to
答案:D
练习册系列答案
相关题目
题目内容
-Must I finish cleaning the house before supper?
-No.You ________ if you have something else to do.
A.mustn't
B.couldn't
C.can't
D.don't have to