用适当的情态动词完成下列对话

1. A: ______I finish my homework now?

    B: No,you____.You____do it tomorrow.

2. A: This bag is very old. ____you still use it?

    B: Yes,I can.

3. A: _____I go out and play football,mum?

    B: No,you______finish your homework first.

4. A: ______I play football in the street?

    B: No,you____.

5. A: _____you find many students in the classroom?

    B: No,I_______.