Question

【题目】They went on well at first but eventually everything ________ they had worried about happened.

A. whichB. whatC. that D. when

Answer 1

【答案】C

【解析】

试题分析：本题考查定语从句。句意：他们开始进展得很好，但是最终他们担心的所有事情都发生了。先行词是不定代词everything，在定语从句中作宾语，不定代词作先行词，则关系词只能用that。