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enough, health, later,  pass, slowly, ,  population , fast ,  number,  mean,  much

Ten thousand years ago, the world’s 1. was very small. For several thousand years it grew quite 2. . But during the last three or four hundred years it has grown very 3. . Two thousan years ago , there were only 250 million people on the earth. One thousand six hundred years 4.  , the  5.  was over 500 million . In 1990, there were over five bilion. A UN report said that the word’s population would   6.  six billion by the end of this century. This is just ten years after it reaches five billion. This  7.  we must grow 8.   food, and have smaller families with fewer, but 9. children. If we don’t do these things, the results will be bad. There will not be    10.   space (空间) even to stand on the earth.

八年级英语选词填空中等难度题

少年,再来一题如何?
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