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The young man wears glasses because he spends too much time _____ the computer.
#48396
A
to work, in
B
working, on
C
to work, on
D
working, in
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She was born __________ January 13, 1993.
#49569
A
at
B
in
C
on
D
from
We are ________ a school trip.
#49706
A
in
B
on
C
at
D
for
I sometimes play volleyball ______ half an hour after school.
#46279
A
in
B
at
C
on
D
for
Sound travels ______ air ______ a speed of about 340 metres per second.
#47987
A
over; in
B
through; at
C
by; at
D
through; over
Her father was too tired_________ too much hard work．
#48390
A
because
B
as
C
for
D
because of