—______ bargaining is always such great fun?

—Usually people consider it a test to see who can stand their ground longer.

A．What is it that

B．Why is it that

C．What it is that

D．Why it is that

在饮用咖啡时，为了不伤肠胃，往往会同时备有一些（）。

A、甜点

B、啤酒

C、饮料