Arthur spends all his free time his grandson
问题描述:
Arthur spends all his free time his grandson
答
on
spend on sth 花时间在某事上
spend in doing sth 花费时间做某事
Arthur spends all his free time his grandson
亚瑟把他所有的空余时间都花在他的孙子上。
答
Arthur spends all his free time his grandson
作家把他的空余时间都花在了他的孙子身上
这里是个短语:spend some time /money on sth
等于
spend some time/ money in doing sth