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Cloze test

There are many problems in the world, but the population problem may be the1 one of the world today. The world's population is growing 2 .Two thousand years ago, there were only 250 million people on the 3 Four hundred years ago, the number was 4 500 million. But at the beginning of the 5 century, the world's population was about 1,700 million. In 1970, this number was 3,600 million. In 1990, the number was five billion. A UN 6 said that the world's population had 7 six billion by the end of the 21th century. This is just ten 8 after it 9 five billion. People say that by the year 2010, 10 may be seven billion.

(1) A.least
B.last
C.greatest
D.most
(2) A.faster and faster
B.less and less
C.more. and more
D.slower and slower
(3) A.country
B.city
C.town
D.earth
(4) A.nearly
B.more
C.a(chǎn)lmost
D.only
(5) A.tenth
B.eleventh
C.twentieth
D.twelfth
(6) A.school
B.report
C.computer
D.number
(7) A.begun
B.passed
C.lasted
D.brought
(8) A.weeks
B.months
C.seasons
D.years
(9) A.went
B.got
C.a(chǎn)rrived
D.passed
(10) A.this
B.they
C.we
D.it
答案:C;A;D;D;C;B;B;D;D;D
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