Since he has had a reputation for being a careful driver,his accident came as quite a surprise语法为什么用since 不用for

he has been a good storyteller since he was a young child.为什么不是had been 英语 He said he ( ) in that factroy since 1949.A.has worked B.had worked C.worked D.was working He ____the Army by the end of 1989.He _____in the army since then.A has joined,has beenB had joined,has beenhad Do you know when he came here?Let me think.He here since he graduated.A.had come B.has been C.had been He ____ a lot of friends since he came to China.A.has made B.has had这道题选哪一个A还是B Since he has had a reputation for being a careful driver,his accident came as quite a surprise语法为什么用since 不用for He _______ me since last week?A:did not telephoneB:had not telephonedC:has not telephoned D:wo not telephone Jim ____ here since he came here.A.has been working B.works C.had worked D.worked Mike _______2000 Chinese words since he came here.A has learnd B had learned C would learn D learned it __ ten years since he __hereA.is;left B.has been;had left为什么是A啊,有since不是应用完成时吗? he has c___ a lot since he came here HE has been in hospital for a few days because he had his leg hurt 有错吗答案给的是SINCE不是BECAUSE 为什么空格就是BECAUSE 英语翻译1.He has had several jobs since he graduated form Yale.2.He has had several jobs since he was a student at Yale.为什么语法书上解释说这两个句子的意思是相近的.同样下面一句It's two weeks since I was ill.语法书 he___call a taxi since he didn't catch the bus.A has to B had to C have to D didn't have to 1.（ ）He said he ___three English songs since he came here .A.learned B.had learned C.would learn1.（ ）He said he ___three English songs since he came here .A.learned B.had learned C.would learn D.has learned2.（ ）Mr.White hoped he ___China He has caught a bad cold since last week改错 he has been a soldier since last year同义句 It is a week since he has been to BeiJing.