Question

【题目】When she got home, the first thing _______ she did was to clean the house.

A. which B. who C. that D. what

Answer 1

【答案】C

【解析】

试题分析：句意：当她回到家里，她做的第一件事就是打扫房子。先行词thing在定语从句中作宾语，该用关系代词that代替，所以选C。