Question

【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

Answer 1

【答案】A

【解析】考查非谓语动词。句意：我们相信为完成这个重要的项目而投入的时间和努力都是值得的。time and hard work与involve是动宾关系，即时间和努力被投入到这个项目中，故用过去分词作后置定语，故选A。