Bill has a lot of teaching experience ,has't he?

问题描述:

Bill has a lot of teaching experience ,has't he?
--Yes,indeed_English since 1950
A He's taught.B He's teaching
C He was teaching D He'd taught 选什么

——Bill has a lot of teaching experience,hasn't he?——Yes,indeed he has taught since 1950.或者He has been a teacher since 1950/ He has been in school sine 1950.时态为现在,Bill has a lot of .指的是现...