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

問題詳情：

—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

知識點：動詞和動詞短語

題型：選擇題