It’s not easy _________ me__________ finish walking a 100-kilometer trail within 48 hours.
#48509
A
of; to
B
for; to
C
of; for
D
for; for
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There are some trees _____ our classroom.
#48707
A
in front
B
in the front of
C
in front of
D
front of
Mr. Brown buys some pens and notebooks _______.
#48092
A
for we
B
for us
C
to we
D
to us