Question

—The two old friends were ____ busy ____ with each other that they forgot the time.

—Yes. They hadn’t met for over ten years, so they kept talking the whole night.

A. too, to talk    B. too, talking     

C. so, to talk    D. so, talking;

Answer

D

【解析】

试题分析：句意:这两个老朋友那么忙于交谈以至于忘了时间。是。他们十年多没见到了，所以他们聊了一晚上。考查句式so…that…因此……以至于……;be busy doing忙于做……，故选D。

考点：考查so…that句式。