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Some social workers_____ different skills often meet at the centre.
#48122
A
with
B
has
C
have
D
are
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We usually play sports _______three hours every day.
#48078
A
for
B
in
C
of
D
at
Teachers must be strict________ their students.
#47495
A
to
B
with
C
in
D
on
The experts think that India’s population may be _______than China’s ______ 2020.
#46531
A
much；by
B
more; in
C
larger；by
D
larger；on
The bus hasn’t come yet. Many people are waiting ______ the bus stop. 
#49625
A
at
B
for
C
on
D
in
It’s generous __ ___ them to donate money to UNICEF. They think it important _____ them to help poor children go to school.
#47915
A
to; for
B
for; of
C
of; to
D
of; for