People in the west make_______a rule to buy Christmas presents for their friends.
#16342
A
that
B
it
C
this
D
as
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Daniel, we ______ you were an adult, ______ who would make good decisions… 
#15787
A
think; one
B
thought; one
C
think; that
D
thought; that
Here are two pairs of shoes, ______ you may choose. 
#15995
A
both of them
B
either of them
C
any of which    
D
either of which