根据首字母提示补全对话中的单词。

A: Hi, Mary. Can you come to my birthday party on Saturday afternoon ?

B: I'm s __1__ I can't. I h __2__ to help my parents.

A: That's too bad. How a __3__ you, Jim c __4__ you come to my party ?

C: I'd l __5__ to

A: Tony, can you come to my birthday party ?

D: W __6__ is it ?

A: Satueday afternoon.

D: Oh, no, I c __7__. I have to studay  f __8__ a test.

A: What about you , Tina ?

E: I'd love to but I have to go to the doctor w __9__ my grandmother. She is ill.

A: What a pity (真遗憾)! Maybe a __10__ time.

E: Sure. Thanks for asking.

电子商务网站建设一般经过的主要步骤有（）

A.域名注册

B.建立主机并确定主机位置

C.硬件选择

D.软件选择