- 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. 
#16489
A
One
B
It
C
That
D
This
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________ no use talking to him.
#16119
A
What
B
That
C
This
D
It
There is          in today’s homework. 
#57399
A
difficult nothing
B
difficult anything
C
nothing difficult
D
anything difficult
 —Would you rather come on Friday or Saturday? — _________.
#16552
A
Yes, of course
B
The other is better
C
What’s the matter
D
Either would suit me