Tom usually plays basketball __________ the afternoon.
#45910
A
at
B
in
C
on
D
of
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Sound travels ______ air ______ a speed of about 340 metres per second.
#47987
A
over; in
B
through; at
C
by; at
D
through; over
Tom usually plays basketball __________ the afternoon.
Sound travels ______ air ______ a speed of about 340 metres per second.