完形填空。 1 the population of China? There are more than 1.3 billion people in China. It is almost one fifth of the world's population. How to control (控制) the population growth is a big problem. Some people think 2 to control the population growth, But I don't quite agree 3 them, because 4 , there is a way. The question is that we should make it 5 how serious the population problem is. Our farmland is becoming less and less to everyone. We have already got too many mouths to feel. 6 we control the population growth, many people will die 7 hunger. Too fast population growth has been and will be bad for our nation. Though laws (法律) have been 8 to control the population growth, in some places, 9 is done to carry out (贯彻) the law. We should make people 10 that it is foolish 11 them to bring too many children into the world. They shall 12 do 13 they have been doing for many years. We are fighting 14 too fast population growth. Yet, the fighting won't end 15 everyone knows its meaning and does something for it. (     )1. A. How many are (     )2. A. that it impossible for (     )3. A. to (     )4. A. there's will (     )5. A. known to everybody (     )6. A. if not (     )7. A. of (     )8. A. past (     )9. A. many (     )10. A. to know (     )11. A. about (     )12. A. not longer (     )13. A. that (     )14. A. for (     )15. A. until B. What is B. it impossible of B. for B. where there's a will B. known by everybody B. Unless B. about B. passed B. little B. to learn B. for B. not more B. which B. against B. after C. How much is C. that it impossible of C. with C. there's the will C. known C. Until C. on C. broken C. a lot C. know C. with C. no longer C. what C. with C. when D. What are D. it impossible D. on D. where there's the will D. is known by D. If D. out of D. thought D. much D. learning D. of D. no more D. how D. without D. as