While reading, you'd better make a mark ___ you have any questions.
#71737
A
on which
B
at where
C
the place where
D
where
推荐题目
There were two small rooms in the house, _____ served as a kitchen. 
#71984
A
the smaller one of which
B
the small one
C
the smaller of them
D
and the smaller one of which
  _______ knows the truth will tell you about it , I think .
#71909
A
Who
B
No matter who
C
Whoever
D
B and C
_____ no need to worry about the problem.The government has promised to have clean water _____ to us from door to door.
#69399
A
It is ; delivered
B
It is ; delivering
C
There’s ; to deliver
D
There’s ; delivered