Question

【題目】The problem ______ now is very important.

A. being discussedB. discussed

C. discussingD. to be discussed

Answer 1

【答案】A

【解析】

考查非謂語動詞。句意：現(xiàn)在正在討論的問題非常重要。being discussed now做后置定語，修飾the problem，相當(dāng)于定語從句that/which is being discussed now，表示“正在被……”。故選A。