––CouldIsweepthefloorlater?Iwanttodomyhomeworkfirst.   ...

问题详情：

––Could I sweep the floor later? I want to do my homework first.

             ––Yes, _______.

A. you can             B. you may            C. you could          D. you should

【回答】

A

知识点：情态动词

题型：选择题