–Are they books?No they arent. Theyre books. A. you; theyB. your; heC. your; herD.

问题补充：

–Are they books?

--No, they aren . They e books.

A. you; they

B. your; he

C. your; her

D. your; she

答案：

A. you; they

B. your; he

(答案→)C. your; her

D. your; she

解析：根据books可知，前面应该用物主代词，而you、she和he都是人称代词主格。故应将ABD排除。所以本题选C。