题干
这是Kitty。她是我的朋友。可以说：
A：This is Kitty. She's my sister.
B：This is Kitty. She's my friend.
答案(点此获取答案解析）
B
这是Kitty。她是我的朋友。可以说：
A：This is Kitty. She's my sister.
B：This is Kitty. She's my friend.
