用合适的关系词填空（每空一词）
I don’t know the reason ____ he was sick.

用合适的关系词填空（每空一词）
I work for a company ____ sells cars.

用合适的关系词填空（每空一词）
Success will belong to those ____ never say “impossible”.

用合适的关系词填空（每空一词）
The boy ____ hat is black is my best friend.

She loves the school        she has studied in for three years.

I’m going to the place        my mother used to live.

Did you remember the day        we spent with the Greens?

I still remember the year         you came to Zhengzhou.

We still remember the factory        we visited last year.

He is unlikely to (不大可能) find the school        he taught 50 years ago.