根据对话内容选择适当的选项补全对话。选项中有多余的选项。

A. And I think e-mail is one of the best ways to communicate with others.

B. I’ve got so many e-mails to go through.

C. I agree with you.

D. Of course!

E. How many e-mail addresses have you had?

F. I feel like getting more e-mails.

G . I am not sure whether I’m right or wrong.

A: It’s very late. Are you still on the computer?

B: Well, yes.   小题1:__

A: What kind of e-mails?

B: Some are messages from my friends and some are from the relatives.

A: Do you have to write them back right away?

B: 小题2:__ Usually people want a quick reply.

A: 小题3:__  

B: I’ve already had 40 people’s addresses in my address book! 小题4:__

A:   小题5:__ E-mail is really very convenient.

职业卫生工作是（）管理的重要组成部分。