I am ready for it.I ____[write]down the ideas in the notebook.答案为have written.想问下为什么一定要用现在完成时.过去式为什么不可以呢.手头只有10分了.各位帮帮忙吧

i am ready for作文急需i am ready for.... i am ready for it [改成同义句] I am ready to i am ready for a walk同义句转换 i am ready ( ) ( ) a walk I was ready for和I am ready for的区别 I am ready for a walk同义句 歌词是I am ready for的歌是哪首 I am ready for the class.(变一般疑问句) I am ready for party 同义句转换 I am ready for the party同义句转换 I am ready for the long jump的同义句 I am ready for the qize.变为疑问句 I am asking for it I am always ready to get ready可以用现在进行时吗?比如 i am getting ready for school be ready for等于i am ready for the English exam等于i _____ the English exam ____ Are you ----the coming test?Yes ,I am.A.getting ready to.B.getting ready.C.gC.get ready for.D ready for 为什么? 英语翻译i am ready to pay for the order..but you have not go down on your price to $265.when you make it...i will pay