they can't afford ___(buy)a new house?buy如何填?我怎么感觉不用填呀?
问题描述：
they can't afford ___(buy)a new house?
buy如何填?
我怎么感觉不用填呀?
答
to buy(afford to do sth )
答
to do 表示将要的意思，因为他们还没有买，是将要买！所以加TO
答
to buy
can afford to buy买得起的意思