14.The foreign teachers, most of ____have never been to China before, are enjoying their work here very much.

13. He changed his mind, ____ made me very angry.

12. The river, _____flows through London, is called the Thames.

11. My brother, _____ you met the other day, has gone abroad.

10.They are _____children because they don’t get good food and fresh air.

Ⅱ.用who, whom或which完成下列句子

9. Talking loudly while eating is a kind of _____ behaviors.

8.The number thirteen is often thought to be ___.

7. He has bought an ______ taxi and has begun a new job.

6. Scientists are now trying to ______ if this is possible.

5.Turn the following questions into _____speech.