9. General linguistics is based on the view that language as a system, which is composed of three aspects : sound, structure and meaning. A. 错误 B. 正确 ...

5. Register is concerned with the purpose and subject-matter of communications. A. 错误 B. 正确 ...

14. ______ is/are used most widely in a community. A. Sociolects B. regional dialects C. The standard variety D. Registers ...

16. Must I finish writing the composition this afternoon? ----No, you ______.H16 A. don’t have to B. mustn’t C. can’t D. may not ...

14. Because he was careless, so he failed. A. 错误 B. 正确 ...

9. .______to say a thing in that way A. It is considers wrong B. It is considered wrong C. It is considered it's wrong D. It is consiedring wrong ...

8. The weather forecast is for more rain, __________ I think we should postpone out trip. A. so B. therefore C. because D. while ...

18. All the afternoon he worked with the door locked. A. 错误 B. 正确 ...

10. There was a meeting yesterday for students who failed the exam. Sally, passed so she (go) _________________________. She went to a party instead. A. didn't have/need to B. needn't have ...

6. The warmth of ________sweater will of course be determined by the sort of ________wool used. A. the; the B. the; / C. /; the D. /; / ...