My sister is in the story.A. interested interestingB. interesting interestedC. interest

问题补充：

My sister is in the story.

A. interested, interesting

B. interesting, interested

C. interesting, interest

D. interest, interested

答案：

(答案→)A. interested, interesting

B. interesting, interested

C. interesting, interest

D. interest, interested

解析：句意：我的妹妹对于有趣的故事感兴趣。Interested指人对某事感兴趣；interesting指令人感兴趣的；故选A。