问题
选择题
—What upsets him?
—________ his computer is out of order.
A．Whether
B．What
C．That
D．How
答案
答案：C
答案：C。句意：——什么事情让他沮丧？——他的电脑出故障了。这是一个省略答语，that引导主语从句，在从句中不充当句子成分。补充完整为That his computer is out of order upsets him。