题目内容：

    情景选择。根据对话情景，从每题所给的三个选项中，选出最佳选项。

1. —Could I ask you some questions?

—______, go ahead.

A. No, you couldn’t B. Certainly C. Good idea

2.—My chest hurts . It’s difficult for me to breathe.

—______.

A.I’m sorry to hear that B. So careless  C. Never mind

3. —Would you like to be a greener person?

—______.

A. That’s all right  B. Certainly not  C. Sure, I’d love to

4. —How long have you been like this?

—______.

A. Last week B. Once a week  C. Since last week

5.—You study English so well!

—______.

A. Don’t say that B. Thank you C. No, I don’t.