1.人人该为世界和平作贡献。(contribution)
2.参加社区活动一定会对你有益的。(sure)
3.这个教授并不在乎穿什么,但对于吃什么却非常挑剔。(particular)
4.那位老父亲看了儿子的照片之后激动得热泪盈眶。(So)
5.一得到消息,我就给我表弟发了封电子邮件,祝贺他在英语演讲比赛中获一等奖。(congratulate)
<Keys>
1.Everyone should make contributions to the world peace.
2.Participating in community activities is sure to benefit you.
3.The professor doesn't care what to wear but is very particular about what to eat.
4.So excited was the elderly father after seeing his son's photos that his eyes were filled with tears.
5.The moment I learned the news, I sent an email to my cousin, congratulating him on his winning the first prize.