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His flat is ________the _______floor in a building on a busy street．
#49549
A
in, nine
B
in, ninth
C
on, nine
D
on, ninth
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— When did your uncle arrive_______ China?— He got to Guangzhou ________ the morning of the 16th of May.
#46033
A
at; in
B
in; in
C
in; on
D
in; at
 It’s necessary _________ us _________ more trees in spring every year.
#45914
A
of; to plant
B
for; to plant
C
of; planting
D
for; planting
It’s silly _______ you not to forgive others for their mistakes.
#48108
A
for
B
of
C
to
D
from
Please call Bob _________495-3539.
#47429
A
in
B
on
C
at
D
of
John starts work ______ 10 o’clock every day.
#49423
A
in
B
on
C
at
D
for