1 . There are many people in the world now. There will be even _________ people later this century. The earth will he crowded and there will be very little room _________ each person. Maybe there will be only _________ room on the earth in 600 years. That will be a very serious problem, so man is taking some _________ to solve the _________.
The moon is the satellite of the earth. Maybe man will go to live on the moon one day. _________, Americans and Chinese have _________ there. But there is no air, no plants, and no life. So _________ are doing experiments in many ways. They will find _________ to these problem __________ man can live on the moon. I’m sure our dream will come true by the end of this century.
1. A.more | B.most | C.less | D.better |
2. 3. A.standing | B.sitting | C.sleeping | D.doing |
4. A.measures | B.medicines | C.policies | D.tools |
5. A.puzzle | B.accident | C.question | D.problem |
6. A.Greece | B.Japanese | C.Englishmen | D.Russians |
7. 8. A.farmers | B.teachers | C.workers | D.scientists |
9. A.cases | B.solutions | C.roots | D.tickets |
10.