There are many tall trees _____ our classroom.
#50349
A
in the front
B
in front
C
in front of
D
in the front of
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The room was filled smoke after the big fire and people had to stay outside.
#46669
A
of
B
with
C
in
D
for
Ten years ____,he studied at school, Now he is a successful doctor.
#48440
A
later
B
ago
C
behind
D
after