When______,the project will help to greatly improve the environment in the community.

A、finished

B、to finish

C、finishing

D、finish
出自:大学英语D252

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