Question

Translation
1. 他太年輕，無法勝任這份工作。(too…to)
2.   眾所周知，英語是一種廣泛使用的國際語言。(As…)
3. 據報道，世博前這條馬路已被拓寬來改善交通條件。（report）
4. 只有通過親身體驗，你才能理解志愿服務有多么重要。（figure out）
5. 救援隊一到達便開始了救援工作，得到了國際社會的高度贊揚。（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