-May I watch TV now Mum? -No you. You do your homework first.A. dont; must B. dont; c

问题补充：

-May I watch TV now, Mum?

-No, you. You do your homework first.

A. don ; must B. don ; can C: can , must D. can ; can

答案：

解析：句意：现在我可以看电视吗，妈妈？不，你不能。你必须先做你的家庭作业。对may开头的问句回答，否定形式常用can’t。所以选C。