他23岁时当了老师.是He was a teacher when he was 23还是he became a teacher when he was 23.为什么?

他23岁时当了老师.是He was a teacher when he was 23还是he became a teacher when he was 23.为什么? I didn't leave until he came back 同意句转换：It was _____ ______ he came that I left他三十年前就开始当老师了He _____ ______a job as a teacher thirty years ago .填啥.. 英语翻译他做了一个实验,结果使人震惊.he made a experiment of which result was shocking.可是老师写的是he made a experiment the result of which was shocking. 他从小就决定做一名老师 英语翻译 when he was a child,he()()()a teacher. He____ ____ when he was 12 years old 当他12岁的时候,他录制了唱片 英语：这句话是否定前置吗?He don't want to be a teacher cause teaching is easy to him.翻译出来是：他想当老师不是因为当老师很简单.为什么不翻译作：“他不想当老师因为当老师对他来说太简单”?don' 两周后他就能骑自行车了 英文是Two weeks later he was able to ride a bike,两周后不是将来时吗?为什么用了was? He ___(be) a father since last year. 我填的是was 翻译出来就是他当了爸爸自从去年开始,对么?但是书上的答案是 was been been 不是去过的意思么,放这里什么意思? 还有was放进去对么? He could play football very well when he was younger he不是用were么 他怎么用了was 是他错了么 When he was a_________boy空中填什么意思为当他13岁一个词 when he was thirties 这句话对吗?“他在三十岁时游遍世界各地”______,he travelled all over the world ,老师的答案是“In his thirties ”,我写了“when he was thirties ”,嗯...不好意思,看了看试卷前面那句是“ of his后分别接什么词?在他20岁的时候 in his twenties当他是个15岁小男孩时.he was a boy of fifteen.请问of 后是用基序词吗?另his后用什么词? 过去时的宾语从句用什么时态?他说他是摄影师 用过去时怎么说 (虽然是过去说的话 但是他现在仍然是一个摄影师)He said he was（用was还是is） a photographer. He made his way put when the film was over中put 好象不对,是out 试想：当电影结束时,人很多,他当然是挤着出去的. 他找到了一份当外语老师的工作.He found a job as ___ ___ ___ ___. 英语（过去进行时)他跑了很长时间了,累的上气不接下气He was running fou a long time and he was 三个问号表示三个单词,注意看我给的句子 英语句子：他上午在学校.这句话是什么句型?是过去式吗?为什么?He is in the school in the moring.我也是这么写的.为什么老师说错了呢?让用IS而不是WAS很不明白. 几道英语完成句子题1.当爱迪生还是个孩子的时候,他就对科学感兴趣了.Edison ___ ___ ___science when he was still a child.2.当我打开电视时,这个节目已经开播十分钟了.When I turned on the TV,the program___ ___