问题
When she got home, the first thing _______ she did was to clean the house.
A:which
B:who
C:that
D:what;
B:who
C:that
D:what;
正确答案是：
同类题型
I have ______ homework this weekend.
The fact has worried many scientists _____ the earth is becoming warmer and warmer these years.
_____ all my teachers, MrMoore is the one who impresses me most
Tony and Rose____ from America.
It’s years since I _______ him last time, and I haven’t written back to him.