I ______ go to bed ______ my father came back.
| A．won’t, until | B．didn’t, until |
| C．will, until | D．/, when |
I won’t watch TV ______ I finish my homework.
| A．while | B．after | C．until | D．as |
---______ to give the letter to Mr. Wang. It’s very important.
---No, I won’t.
| A．Remember | B．Don’t forget | C．Be sure | D．Make sure |
On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.
| A．practicing | B．preventing | C．polluting | D．protecting |
---What did the policeman say to you just now?
--- He asked _______ when the accident happened.
| A．what I was doing | B．what was I doing | C．what I am doing | D．what am I doing |
---Simon, I’m going to Beijing with my parents tomorrow.
---______!
| A．Have fun | B．Best wishes |
| C．Never mind | D．Cheer up |