i have been a teacher for twenty years.i ___ a teacher twenty yea_英语解答

i have been a teacher for twenty years.
i ___ a teacher twenty years ___ （保持句意不变）

人气：272 ℃　时间：2019-10-19 07:47:01

解答

I have been a teacher for twenty years.
我已经做了20年教师了.
I _became__ a teacher twenty years __ago_ .