As students, we have many duties to perform, with improving our ability to learn _______. 
#25939
A
in special
B
in advance
C
in practice
D
in particular
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He will go to school by bike ____ on foot.
#29070
A
instead
B
of
C
instead of
D
no
The charity aims to provide assistance to people        .
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A
in demand
B
in particular
C
in public
D
in need
--- Did he break it accidentally? --- No, __________.
#26166
A
with purpose
B
by chance
C
on purpose
D
by mistake