保卫萝卜3集市60关攻略:COULD YOU PLEASE TAKE GOOD CARE OF IT WHILE I'M AWAY?

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为什么CAN要用过去式

could在这里不是CAN的过去式,而是表示一种委婉的请求方式"...可以吗?"

表示一种语气的委婉

could 比can更委婉

对~~
表示委婉

委婉的意思比Can好

语气婉转
同would
你想：你听过would you pleased do ,那为什么你不想为什么will要用过去时?一样的道理吧。

Could you please give me some advices? could you please...和could I please...怎么回答，有区别吗 Could you mail these letter for me,please? --Could you mail these letter for me,please? 27. Could you know ___ second chance please? Could you please go to the party?answer____________ （Could you please do me a favor ?）是什么意识？ could you please quote your best P&D? could you please write down some English songs to me?expecially the beautiful songs. could you help the with the heary box--?A.yes,please