_________ I slept well last night, I still felt very tired this morning.
--- Are you worried when your son often plays computer games? --- Yes. I think playing too many computer games ______ on teenagers.
I won’t watch TV ______ I finish my homework.
---______ to give the letter to Mr. Wang. It’s very important. ---No, I won’t.
On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.
---What did the policeman say to you just now? --- He asked _______ when the accident happened.