— Well, ________ I have to fetch my son in the kindergarten.

— Of course. Thank you very much for helping us. [ ]

A. may I excuse myself now?

B. let me go first.

C. I'm sorry.

D. see you later.

安装完Windows舌，桌面上通常出现的图标有( )。

A．我的电脑

B．我的文档

C．Word的快捷启动方式

D．回收站