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

问题改错题

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.________

答案

1. small 2. was 3. much 4. greatest / biggest 5. what

6. in 7. and 8. don't 9. be 10. known