问题补充：
This book is very and I am in it.
A. interest; interest
B. interesting; interested
C. interested; interesting
D. interested; interested
答案：
A. interest; interest
(答案→)B. interesting; interested
C. interested; interesting
D. interested; interested
解析：形容词辨析. Interesting有趣的,指物;interested 感兴趣的,指人.句意:这本书非常有趣,我对他非常感兴趣.结合语境可知前文指物,下文指人,故选B.
