摘要： In about 600 years, we will hardly have enough space in on the earth.
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During just one minute, 174 babies are born in world. That means people 1 find food for over 250, 000 mouths 2 in one day. The population problem 3 the greatest one of the world today.
The world's population is growing faster and faster. In 1990, the population 4 over five billion. An UN re port 5 that the world population will pass six billion 6 the end of the twentieth century. People say that by the year 2010, it will be seven billion. That means 7 in about 600 years, there will be standing 8 only on the earth. There 9 enough space for anybody 10 .
1．
[ ]
A．has to
B．must
C．have to
D．need
2．
[ ]
A．many
B．more
C．most
D．much
3．
[ ]
A．may be
B．maybe
C．can't be
D．will be
4．
[ ]
A．took
B．was
C．were
D．had
5．
[ ]
A．speaks
B．talks
C．tells
D．says
6．
[ ]
A．by
B．in
C．for
D．to
7．
[ ]
A．if
B．whether
C．what
D．that
8．
[ ]
A．house
B．rooms
C．room
D．houses
9．
[ ]
A．won't have
B．won't be
C．will be
D．is sure
10．
[ ]
A．else
B．other
C．another
D．More