题目内容：

根据对话内容，从方框内所给的选项中选出能填入空白处的最佳选项。选项中有两项为多余项。

A：Hello, Mr. Black.1.

B：Sure. Go ahead.

A：2.

B：People in England usually don't say exactly what they are thinking when they want to finish talking.

A：What do you mean? I can't understand well.

B：Often, 3. For example, many phone  talks finish when one person says, “I have to go now.”  or  “Someone's at the door.”

A：4.

B：Yes. The person who wants to finish the phone call simply doesn't want to talk anymore. But it isn't polite to say that.

A：The excuse is more polite, 5.

B：Yes, you're right.

A．the person who wants to finish the phone call gives an excuse.

B．There is food on the pot.

C．I want to know how to finish talking with other people in England.

D．May I ask you some questions?

E．and it doesn't hurt the other person.

F．so it is right to finish the conversation politely.

G．The excuse might be real, or not?