They spent half a year with their uncle and aunt on the farm last year 划在half a year 上用什么提
问题描述：
They spent half a year with their uncle and aunt on the farm last year 划在half a year 上用什么提
答
How long did they spend with their uncle and aunt on the farm last year？
答
how long
答
How long did they spend with their uncle and aunt on the farm last year
答
How long did they spent with their uncle and aunt on the farm last year