With a population of over seven million, London is ________ the largest cities of the world.
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A
between
B
among
C
from
D
of
推荐题目
I met her ________in a crowded bus.
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A
with an accident
B
by accident
C
in accident
D
by an accident
— Where is the hospital?— It’s about 500 meters ______ the school.
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A
north of
B
in the north of
C
the north of
D
in north of
Roads in this mountain area used to be_______; people found it hard to travel here. 
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A
in poor conditions
B
in the poor condition
C
in poor condition
D
in a poor condition