——Mr Wang.must I come again on Sunday morning to clean the windows?
——N0,you________.I have asked others to do it.
A.don’t have to B.mustn't C.can’t D.shouldn't
参考答案:
答案解析:
——_________?——I have a headache.
——_________?——I have a headache. A.How do you do B.What do you do C.What’S wron