20.　 Most kites are made of paper, but ___ kite made of silk won’t _____ so soon.

A. the; tear　 B. a; tear　 C. the; be torn　　 D. a; be torn

19. ______ there are many different interpretations of our body language, some gestures seem to be universal.　 A. When　　 B. While　　 C. As　　 D. Since

18. I decided to ________ the whole matter as a great joke!

A. look for　 B. look at　 C. look into　 D. look on

17. ______ the best students, they were awarded the prizes.

A. Judging by　　 B. Judged from　 C. Judged　　 D. Judging