we are the best players in our school.我们是全校最好的选手.
Can you do it,Paul and John?保罗和约翰,你们能做吗?
Let us do our best.让我们尽最大的努力.
We are always behind you.我们永远支持你.
My mother has got a beautiful watch.我妈妈有一块很漂亮的手表.
His father has swum in a river.他爸爸曾在这条河里游泳.
这不是剑桥英语第二册的现在完成时句型么.