Question

下面短文中的画线部分是错误的，请改正，并将正确答案写在右边相应题号的横线上（每空一词， 不得改变原文意思）

10 000 years ago, the world's population  was very little.  Four hundred years ago, the number were over 500 million.         Today, it's still growing more faster     than ever before.  Now the problem        may be the greater one in the world.      How do you think of it? What              will happen to the world? What will       happen after a hundred years? This        means we must grow more food and          smaller families with fewer or healthier  children. If we won't do these, the       results will be very bad. There will      not have enough space to stand            in on the earth. This must be know        to us.                                                1.________  2.________  3.________              4.________  5.________              6.________              7.________  8.________              9.________                                                                         10.________

Answer 1

1. small   2. was   3. much   4. greatest / biggest   5. what 6. in  7. and   8. don't   9. be   10. known