This is my sister’s Lily. She is to me.A. friend friendB. friend friendlyC. friendly

问题补充：

This is my sister’s , Lily. She is to me.

A. friend, friend

B. friend, friendly

C. friendly, friendly

D. friendly, friend

答案：

A. friend, friend

(答案→)B. friend, friendly

C. friendly, friendly

D. friendly, friend

解析：根据this is my sister‘s ，故选答案为名词单数形式，be friendly to sb，表示对···友好，故选答案为B