Is ____ necessary to complete the design before National Day?
#95093
A
this
B
that 
C
it 
D
he
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Oh, much smoke here! Somebody _______ the window, please.
#92205
A
opens
B
open
C
shall open
D
will open
.This printer is of high quality and very expensive. ________, we would buy __________.
#94085
A
Should the price of it be brought down; one
B
If the price of it be brought down; one
C
The price of it was brought down; it
D
Brought down; it
It is said that our body _______ 206 bones; if one of _____ is broken, it will cause inconvenience of some kind. 
#93812
A
makes up of; them
B
is made up of; them
C
is made up of; which
D
makes up; which