d,1,mary wanted to buy a new computer.为什么want要加ed?（下面还有题）
2,they will build a bridge over the highway.这句话的翻译,这句话为什么用the?
3,---i think everyone must do his best to stop pollution ---if so,there will be a good future for people df tomorrow.这句话的翻译,这句话有什么语法知识点?
4,he is like my father to me.为什么用to?
5,他们很难再这么短的时间内想出一个新的办法.it's difficult for them to think of a new way in such a short time."think of"是“认为”的意思,又不是想的意思,为什么这里用“think of"?