英语翻译1.去年他们一直用蜡烛,没有用电.（instead of)2.那位科学家对此事一无所知,因为他一直在做他的研究工

1.Last year,they were using candles instead of electricity.
2.The scientist knew nothing about it(or the event),for he was buried in his research.
3.The city was jin ruins after the earthquake.
4.He dug out a box of money in the field.
5.She is very proud of her children's success.