piease be quick 变成否定句

piease be quick 变成否定句 Be quick!否定句请用Don't回答 Be quick 否定Be quick 的否定是Don't be quick为什么要加助动词,不能直接Beno't quick吗?be动词为什么也要加助动词呢,不是直接加not就可以了吗? Piease Be Brave Piease Be Brave.是什么意思 She must be fat.(变成否定句) give him some sweets piease改为否定 clean the desk,piease(改为否定句) Come with us,piease变否定句 Piease read it after me.(否定句) Stop the car,piease .改为否定句 作文 Be quick! be quick中文 be quick 的中文 Be quick的中文翻译 Please be quick.英文翻译 be quick还是be quickly piease