Do not think that you are helping others who are not fortunate, but think of it as _______?

选择一项:
A. exchange
B. trade
C. bargain
出自:人文英语2

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块