老师们,请问这题怎么做
The book he is reading was given to me by Mr Li.
Who was the grey-haired old woman we saw at yesterday's meeting?
He makes good use of the time he can spare.
I don't know the room where our headmaster lives.
This is the least interesting book I have ever read.
The doctor who Della was waiting for stepped in.
I want to borrow the dictionary you bought last week.
Have you ever asked him the reason which may explain his absence?
He was taken to a large dormitory where he sobbed himself to sleep.
B
which/that
who
who
who
that/which,why
whose
which/that
where
that/which, when
where
谢谢