—Theairismuchbetterthanbefore.—Sure.That*sbecausemanyfa...

问题详情：

—The air is much better than before.

—Sure. That*s because many factories      new energy cars to cut down air pollution in

our country.

A.     produce                          B. repair                             C. clean

【回答】

A

知识点：动词和动词短语

题型：选择题