在英语中 can 和 do 能不能连用 (for instant :you can don't take part in

在英语中 can 和 do 能不能连用 (for instant :you can don't take part in you can don't take part in it but you can't take part in what you see. 怎么翻译 do what you can to stay in his good book.Don't take sic must和can能不能连用? 一到英语选择,请详解Take part in sports you enjoy ________you can meet I don't know what can I say ,so ,need take care for you 谁说的Don't ask what your country can do for you ,but what you what can i do for you?I don‘t kown.well,would you like （ ）to I don't know what can i do for you.but i missing you so much I don't think that there is anything you can do for me.中文意思, 翻译I will wait for you.Cause I don't know what else i can do.