你想告诉比尔这里是物理实验室，你可以说：( )

A．This is a lab for chemistry.

B．This is a lab for physics.

你想让大明把门打开，应该说：(   )

A．Open the door.

B．Please sit down!

补全对话。
Doctor: What’s the matter with you, Bill?
Bill:【小题1】
Doctor: What happened to your teeth?
Bill:【小题2】
Doctor: What did you eat yesterday?
Bill:【小题3】
Doctor: I’m afraid you eat too much sweet food. It’s bad for you.
Bill: What should I do, doctor?
Doctor:【小题4】
Bill: OK. Thank you very much.
Doctor:【小题5】

当你想让妈妈带你去玩具店时,你会说: (    )

A．Please take me to the fruit shop.

B．Please take me to the restaurant.

C．Please take me to the toy shop.

你想告诉别人最近还不错，应说:(   )

A．Not bad.

B．Not good.