His elder brother works on a farm.（用in a factory改为选择疑问句）----------- his elder brother work on a farm --------- in a factory?
问题描述：
His elder brother works on a farm.（用in a factory改为选择疑问句）
----------- his elder brother work on a farm --------- in a factory?
答
Does his elder brother work on in a factory?
答
Does his elder brother work in a factory?
我的回答绝对正确 楼上的怎么可以用work on in呢。
答
Does his elder brother work on a farm or in a factory?这是选择疑问句.