7. people now fear that the ozone layer may be irreversibly damaged . A. 错误 B. 正确 ...

25. Workers seldom commit acts of violence ,because they can put their aggression into their work ,___it physical like the work of a smith ,or mental like the work of a scientist . A. be B. were C. is D. was ...

20. She tried ___ the name of the of boy ,but was too confused to think of anything . A. to recall B. recalling C. recall D. recalled ...

14. Sam is being ____ for his stomachache at the hospital now . A. cured B. healed C. treated D. operated ...

4. The students are allowed to take only such books ___ really necessary . A. as are B. as they are C. as when D. as if ...

2. Beth Tolkoff ,the third of four children ,grew up in suburban Philadelphia . A. 错误 B. 正确 ...

25. Cathy doesn't care what she eats ,but she is very ____about what she wears. A. particular B. caring C. careless D. demanding ...

20. Child ____ she is ,the girl is quite independent . A. like B. when C. for D. as ...

15. More ____ the issue of business ethics in the context of economic globalization . A. emphasis should be placed on B. stress should be put about C. attention should be paid on D. efforts should made with ...

7. A:There are imitation pearls . B:_____. A. So are they B. Such they are C. So they are D. Such are they ...