问题
选择题
--They were ________ busy ________ with each other ________ the time.
--- How cool the guys are !
A．too; to talk; to forget
B．too; talking; to forget
C．so; to talk; that they forgot
D．so; talking; that they forgot
答案
答案：D
这句话是so…that…句型，所以第一空填so，第二空考查be busy doing，填talking，第三空填that引导的结果状语从句，句意是：他们忙于彼此交谈以至于忘了时间。选D。