——There must be a dozen pens in this house but I can never find one when I need one.——Keep looking. ______is sure to turn up. 
#16875
A
One
B
It
C
That
D
This
推荐题目
___ has taken away my notebook?
#16542
A
Which of you
B
Who of you
C
Which you
D
Who you、
You’d better not read today’s newspaper because there is _____ .
#57122
A
something important
B
anything new
C
important thing
D
nothing special
—Our government is doing _______ to protect the environment.—That’s great. 
#57382
A
something useful
B
anything useful
C
useful something
D
useful nothing