Is this article ______ you wrote for the magazine?
#15801
A
that
B
this
C
it
D
the one
.Among all the problems,_______is so difficult as this one. 
#15803
A
not one
B
either
C
neither
D
none
 Have you any knives? I need a sharp ________.
#15804
A
it
B
another
C
one
D
any
 I have no idea ________ is better, so I took _______ of them.
#15806
A
what, both
B
what, none
C
which, both
D
which, all
What’s the matter with you? There’s        in your project!
#15813
A
serious something wrong
B
something seriously wrong
C
seriously something wrong
D
serious wrong something
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