用“介词+which/whom”完成下列句子
This is the man _________Icouldn't have made such great progress.
Jane explained to her teacher the reason _____________ she came late.
We went to the university _______ we had studied 20 years ago.
The plan __________________ most people present didn't agree was called off.
There used to be a time ________________ the Chinese people struggled for freedom.
Don't you want to explain the reason ______________ you were late for the important meeting?
He lives in an old room, the roof _________________ has been damaged in the storm.
In our class all the fifty students, only one ___________________ didn't take part in the exam, passed the final exam.
The man ________________ share the room is a young teacher fresh from college.
He works in a factory, at the back _____________ there is a river.