_______ of my classmates could work out the maths problem because it was too difficult.
#15966
A
Each
B
No one
C
None
D
Any
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To save class time,our teacher has_______students do half of the exercise in class and complete the other half for our homework.
#16459
A
us
B
we
C
our
D
ours
In the west, people make _______ a rule to send Christmas present to their relatives and friends.
#16604
A
this
B
that
C
it
D
the following