Sally is busy ______ her homework.
#51173
A
in
B
at
C
with
D
on
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They are always ready _______ helping.
#50888
A
for
B
of
C
to
D
in
 Eating a lot of vegetables __________ good __________ our health.
#48864
A
is, to
B
are, for
C
are, at
D
is, for