—We'dbetternotbuycupsorboxeswhichcanbeusedonlyonce.—Tha...

問題詳情：

—We'd better not buy cups or boxes which can be used only once.

—That's right. It will save energy and ________ waste.

A. increase  B. reduce  C. produce

【回答】

B

知識點：動詞和動詞短語

題型：選擇題