i have been a teacher for twenty years.

i have been a teacher for twenty years. I have been a teacher for twenty years 对for twenty years提问 i have been a teacher for twenty years（保持原句意思） i ___ ___ ___ As a music teacher for twenty-seven years, I have always kno As a music teacher for twenty-seven years I have always know i have been a senior middle school teacher for years这句话什么意思 They have been working ____ a teacher for 10 years. Mr .Zhang has been a teacher _________ twenty years.A for B. mr johnson has been a teacher for twenty years保持基本句意不变mr joh 英语:My father has been a teacher for ___(near) twenty years. i have been buying the lottery for almost twenty years but i I have been living in the United States for twenty years,but