He has taught here since 1981与He has been teaching here since 1981有什么区别啊?

iwang li’s father has taught english here since he graduated from peking un 1.Wang Li’s father has taught English here since he graduated from Peking University.2.Please g He has taught here since he came here.一句中对since he came here进行提问怎么说 He has taught here since 1981与He has been teaching here since 1981有什么区别啊? tom has taught english here since he graduated fro oxford university什么意思 有这样一句话：He ______(teach) in this school since he came here last year.横线上填什么好些?到底是had taught. 还是has taught. Bill has a lot of teaching experience ,has't he?--Yes,indeed_English since 1950A He's taught.B He's teaching C He was teaching D He'd taught 选什么 一些英语选择题,1.He ___ in our school for 20 years and he __a_ here in 1977.A.has taught; came B.has taught; has come C.taught; came D.has teached; has came2.She _c___ over to me as soon as she caught sight of me.A.is walking B.walks C.walked The Chinese teacher ( )here since 1999.A.taught B.has taught C.teaches D.have taught说明理由 John's father__mathhematics in this school ever since he graduated from Harvard UniverJohn's father__mathhematics in this school ever since he graduated from Harvard UniversA:taught B:teaches C:has taught D:is teaching He has( )( )(一些)friends here 英语翻译she has taught art for twenty-five yearsshe's taught art for twenty-five years He told me that he had taught English since he came here.改为直接引语 75.He has few friends here,____?A.has he B.hasn's he C.does he D.doesn't he Excuse me,does Mr Smith’s son live here?-He（ ）live here,but he has moved A.has to B.used to He has some friend here.He has_____ _____ friends here. here‘s our friendship .是here is 还是here has He has taught English in this university ever since he moved to this city