本题选择什么15.He works as a teacher now,but he________ on a farm

本题选择什么15.He works as a teacher now,but he________ on a farm He works as a teacher now,but he ___ on a farm for 3 years.A He works as a teather now,but he__on a farm for three years he works as a teacher He works in a factory now, but he _____on a farm for 20 year my uncle works on a farm now. 什么用介词on 而不用at on the farm =at Model :He’s a farmer.He works on a farm When he was young,he worked on a farm,but now he doesn't.改为同 He works on a farm.(改为一般疑问) Does he my father works on a farm he is a[ ] Mr.White works as a lawyer now,but he ________ in a company 1,robert works on a farm.he is a____