Doing morning exercises is good ________ our health.
#46921
A
to
B
with
C
for
D
at
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Tom is going _______ December, and she’s staying _____three weeks.
#48774
A
on, for
B
in, for
C
at, in
D
in, on
They are very grateful _______ us _______ them so much help.
#47865
A
to, to give
B
of, to give
C
for, give
D
to, for giving