It’s time to say goodbye to my school . I’ll always remember the people have helped me .

问题补充：

It’s time to say goodbye to my school . I’ll always remember the people have helped me .

A. who

B. what

C. where

D. which

答案：

(答案→)A. who

B. what

C. where

D. which

解析：根据本句的结构可知本句是一个定语从句，而定语从句的引导词取决于先行词，本句的先行词是people，应该用who来引导。所以本题选A。