Question

Cindy shut the door heavily and burst into tears. No one in the office knew__________she was so angry.

     A. where           B. whether         C. that             D. why

Answer 1

D

解析:

考查名词性从句。该空引导宾语从句，根据句意“办公室中没人知道她为什么如此生气”可判断选D项。