Tony worked in a lawyer’s office years ago,but he is now working at a bank.为什么前面用work in,后面用work at?两者的介词有什么区别?

______（graduate） from my college,I worked in a law firm as a lawyer. Tony worked in a lawyer's office years ago.请问句中的years ago是固定搭配吗那years Tony worked in a lawyer's office years ago.为什么years前面不用加介词?好像It has belonged to our family for a long time. 【高中英语】-Could you tell me where you're working now,Tony?-Could you tell me where you're working now,Tony?-In the new development zone.But I__D_in a computer company for five years.A.have worked B.had worked C.was working D.worked sister and brother-in-law a happy a good brot her-in-law是什么意思 Tony often makes a[ ] in his room Tony worked in a lawyer’s office years ago,but he is now working at a bank.为什么前面用work in,后面用work at?两者的介词有什么区别? work for work at work in1.he is working for a big firm2.tony worked in a lawyer's office years ago3.he is now working at a bank请问可不可以互换,如果不可以的话是为什么? They worked in a company ___made computers. The doctor checked up Mike's ________ hearts.A.mother in law's and his brother in law's　　B.mother's in law and his brother's in law　　C.mother in law and his brother in law'sD.mother in law and brother in law's为什么选A 新概念英语第二册11课文分析我老师让我讲这一刻,哪位大虾能帮忙分析一下句子,最好有课外小练习,谢谢谢谢啊、、、、、、I was having dinner at a restaurant when Tony Steele came in. Tony worked in a lawyer' Kate has two sisters,so she will have two ____.A.brother-ins-law B.brother-in-law C .brother-in-laA.brother-ins-law B.brother-in-law C .brother-in-laws D.brothers-in-law I first met Tony three years ago.He ___ at a bookshop at the time.A.has worked B.was working C.had worked D.is working 关于系动词的句子分析,以及究竟如何使用的问题!在语法书上看得解释的是：说明主语性质和状态.Tony worked in a lawyer's offices years ago.Tony is now working at a bank.为什么第一句用work做动词 而第二句 The old man has two ().A.son-in-law B.sons-in-law C.son-in-lows A causation is the universal law in our reality. in law 和 by law的区别