He works in a factory now, but he _____on a farm for 20 years. A.worked B.had worked为什么答案选了A 而不选B

he works in a factory he works in a police station.急 He works in a factory同义句 He works in a university翻译 He works in a factory,too.(改为同意句） He works in a factory_______ _______ he works in ()store he works in a hospital能改写成he works in the hospital吗 He works ( ) a car factory.He works ( ) a car factory.A.on B.of C.in he works in a school 对in a school提问 He works in a school.对He提问 He is a doctor.He works in the h---- 英语翻译My father is a nice man.He likes to play computer games.He is an owner of a factory which produces many things .He is good at designing.He works very hard.I love him very much because,sometimes,I can help him to do something in his factor My brother is a w___,He works in a restaurant. my brother is a waiter.he works in a r . HE WORKS IN THIS HOSPITAL A A DOCTOR his father is a d_________,he works in a hospital. His aunt is a d________.he works in a hospital His brother is a worker,he works in a car____