whathesaidinterestedus这里interested是形容词还是动词过去式hesometimesbehavesstrangely,andthis()hisparents.A.puzzleB.puzzlesC.puzzlingD.puzzled这个题目是选哪个,具体怎么解释,

　　whathesaidinterestedus这里interested是形容词还是动词过去式

　　hesometimesbehavesstrangely,andthis()hisparents.

　　A.puzzleB.puzzlesC.puzzlingD.puzzled

　　这个题目是选哪个,具体怎么解释,