Mrs Smith lives in our building. She is really a good because she is always ready to help

问题补充：

Mrs Smith lives in our building. She is really a good because she is always ready to help people around her.

A. visitor

B. waiter

C. neighbour

D. artist

答案：

A. visitor

B. waiter

(答案→)C. neighbour

D. artist

解析：A. visitor旅行者 B. waiter侍者 C. neighbour 邻居 D. artist艺术家；句意：史密斯太太居住在我们小区，她真的是一个好邻居，因为她总是帮助她身边的人。故选C