When the teacher comes, we all stop _______ and do our homework?
| A．talking | B．to talk | C．talk | D．talks |
Just_______ here and don't go anywhere, or your parents won't find you.
| A．to stay | B．stays |
| C．stay | D．staying |
---Millie, ______ late for school again.
— Sorry, I won’t.
| A．isn’t | B．doesn’t be |
| C．don’t be | D．won’t be |
________ playing chess after school？
| A．Let’s | B．What about | C．Why not | D．Don’t |
- ______ exercising, and you'll be healthier.
| A．Keep | B．To keep | C．Keeping | D．Kept |
----“Don’t be late again , Tommy” ----“OK, _______.”
| A．I don’t | B．I won’t |
| C．I do | D．I will |