2016-2017学年 人教版 选修7 Unit 4 Sharing Grammar 课件 (82张)
2016-2017学年 人教版 选修7  Unit 4 Sharing  Grammar  课件 (82张)第2页

 They are kind and warm-hearted people who can give time, energy and talents to help others in need and serve their communities, expecting nothing in return.

A Riddle (谜)

Who are they?