将志愿者活动图片与对应的表达匹配，填写在横线上。
【小题1】_______     
【小题2】_______   
【小题3】_______   
【小题4】_______   

A．Helping kids in an after-class program.

B．Working in an old people’s home.

C．Helping clean up the city parks.

D．Being a guide at a museum.