He is good at English, ______we all know. 
#73808
A
that
B
as
C
whom
D
what
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