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When I walk_____ the classroom, all the students are listening carefully.
#50479
A
passed
B
to pass
C
past
D
pass
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 Thanks _____ your help.
#47559
A
to
B
of
C
for
D
at
Thanks        your telephone number.Can I call you         the number?
#50505
A
for,on
B
at,at
C
at,for
D
for,at
—Where’s Mary?   —She’s ________ the classroom.
#48804
A
in front of
B
between
C
in middle of
D
under
How selfish it is _____ him _____ the cakes with others.
#50837
A
for; to share
B
of; not share
C
for; not sharing
D
of; not to share
 ---How soon will Harry be back ？ -----He said he would come back _____ two days.
#49153
A
of
B
in
C
about
D
for