Since then he was been doing the work.怎么译?用的是什么时态?

Since then he was been doing the work.怎么译?用的是什么时态? Since then,he -----(not be)able to walk any more.只要有Since then就用现在完成时吗，若是，麻烦举几个例子，谢喽 from then on & ever since then的区别Clinton was born in a poor family in 1946.Three months before he was born,his father,William Blats,died in a traffic accident._______ he tried to work hard at his courses at school and made up his mind to be a u 完形填空,John Smith had wanted to be a pilot since he was a child,so when he won the lottery and had a lot of money ,he decided to buy his own plane.Then he 1._____ flying lessons.Unfortunately,he wasn’t a very good student .But at last he 2.__ 英语翻译John Smith had wanted to be a pilot since he was a child ,so when he won the lottery and had a lot of money ,he decided to buy his own plane .Then he took flying lessons .Unfortunately ,he wasn’t a very good student .But at last he pass He left his hometown when he was eighteen years old and he’s never returned ______.A.after then B.then C.later that D.ever since 应该选什么 为什么 Since then he __(work) at this factory. since then he - - - - - -（再也没去过那儿了） He _______ his lesson,and has never done that illegal business again since then.A.was learning B.had learnt C.learns D.learned 用所给的连词合并下列句子Mike went to New York last year.from then on,he was worked as a lawyer(since) he was fat then.改为同义词 My uncle got sick last month and _______ in hospital since then. 空填哪个?A.was B.had been C.has been D.would be Bruce has lived in the village ()Gum Tree since he was bornA called B be called 选哪个为什么 It --- five years since he left for Beijing. A.was B.had been C.is D.is going to be Since he asks you,then you'll tell him why.then加着有没有毛病啊 He ____ (live) on the farm since he was born He-------------（know）the city since he was very young. 几道很简单的英语题目 实在搞不清时态了1.This family ______(live) here since ten years ago. they ____(come)here in 19982. he _________(be)born in 1983 . since then,he_______(live) in this city