We believe the time and hard work _______ in completing such an important project are worthwhile. A....
2022-11-12 20:39:48 129次 2015届江苏泰州姜堰高三上期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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
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