According to the United Nations, an aging society refers to one ____ 10 percent or more of the population is over 60, or 7 percent or more is over 65.   
#68932
A
where
B
when
C
which
D
that
推荐题目
Not only_______polluted but_______crowded.
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A
was the city;were the streets
B
the city was;were the streets
C
was the city;the streets were
D
the city was;the streets were
Last week, only two people came to look at the house, _____wanted to buy it.
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A
none of them
B
both of them
C
none of whom
D
neither of whom
There comes a time in every man's life_____. 
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A
that he needs to think
B
when he has to think
C
therefore he has to work hard
D
then he will need it
All __________ can be done has been done.
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A
which
B
that
C
/
D
what