Question

Translation
1. 他太年轻，无法胜任这份工作。(too…to)
2.   众所周知，英语是一种广泛使用的国际语言。(As…)
3. 据报道，世博前这条马路已被拓宽来改善交通条件。（report）
4. 只有通过亲身体验，你才能理解志愿服务有多么重要。（figure out）
5. 救援队一到达便开始了救援工作，得到了国际社会的高度赞扬。（No sooner）

Answer 1

1. He is too young to do the job successfully (well).
2. As is known to all, English is a widely used international language.
3. The road is reported to have been widened to improve the traffic condition before the EXPO．
4. Only by your own experience can you figure out how important volunteer work is!
5. No sooner had the rescue team arrived than they began their (rescue) work and (they) were highly praised by the international society.

略