单项选择
21. According to the reports, one of the rare animals, ______ South China Tiger, is in ______ danger of dying out.
A. a; the B. /; / C. /; the D. the; /
22. The missionary, as a Chinese，pretended to be a local，but his blue eyes and Greek nose him .
A. dressing; gave…out B. dressed; gave…away
C. being dressed; gave…out D. dressing; gave…away
23. The baby tried his hands into the hot water ______ his mother could stop him.
A. while B. when C. until D. before
24. I would appreciate very much if you could send me a few copies of the mechanic design of your new model.
