——Is it my appearance       the professor minds?——I guess not. He will consider       necessary to have an experienced assistant. 
#68806
A
which;it
B
that;it
C
which;that
D
that;that
推荐题目
--What is that building? --____________ the students have their dance classes.
#68792
A
The building that
B
There are
C
That’s the building which
D
That’s where
At last, they reached _______ there was no grass and trees.
#68235
A
to the place where
B
where
C
the place which
D
in which