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I sometimes help my mom with her housework____________ Saturdays.
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A
at
B
in
C
on
D
to
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Please connect the keyboard        the computer.
#48209
A
in
B
at
C
to
D
on
Wow! Ten students in our class will celebrate their fourteenth birthdays__________ October!
#47803
A
in
B
on
C
at
D
to
Do you often spend half an hour       your homework every day?
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for
B
in
C
at
D
On
— How do you study for a test?— I study _____working with a group.
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A
for
B
with
C
on
D
by
 It’s necessary _________ us _________ more trees in spring every year.
#45914
A
of; to plant
B
for; to plant
C
of; planting
D
for; planting