[题目]We believe the time and hard work in completing such an important project are worthwhile.A. involved B. involvingC. to involve D. to be involved 题目和参考答案——青夏教育精英家教网—

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【题目】We believe the time and hard work _______ in completing such an important project are worthwhile.

A. involved B. involving

C. to involve D. to be involved

【答案】A

【解析】

试题分析：考查非谓语动词。逻辑主语the time and hard work与involve之间是被动关系，所以用过去分词

表被动。句意：我们相信完成这样一个重要的工程所用的时间和努力是值得的。故选A。

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