1。在考试中我还没来得及检查一遍，铃就响了（before)
2。从他在求职面试中的表现来判断，他能胜任这个职务（be qualified）
3。你是否后悔过前几年浪费这么多时间打游戏机（regret)
4。随手关灯证明是一个切实可行的节电措施（elective)
5。如果人人对别人献出一点爱，我们的家就将会更美好（show)
參考答案:The bell rang before he checked through the paper in the exam.
Judged by his performance in the interview, he is qualified for this job.
Do you regret spending so much time on video games.
Turning off the light whenever you should proves to be an elective means of saving the electricity.
If every person shows a little of love to others, our home will be better.