please be quiet.变否定句.为什么?

please be quiet.变否定句.为什么? please be quiet 改为否定句 ______ ______ quiet ,please. Please be quiet (改成否定句) Please _____ ______ quiet. please be quiet.变否定句 please stand in line.变否定句 don t stamp your,please.变肯定句please don t walk on the grass.变肯定句快 Be quiet 否定句 英语变形Please be quiet变为否定句! Billy,please be quiet.改为否定句怎么做 Please be very quiet.改为否定句 Please（ ）（ ）very quiet. 把be quiet变为否定句怎么变 Please be quiet in class .（改为否定句）Please ---- ----- ---- in class . be quiet, please.该否定句be动词不是应该在后面加not吗 please keep quiet (改为否定句) Keep quiet,please.(改否定句)___ ___ quiet. 用be quiet 造否定句 Please be quiet. (改为同义句) _______ ________ quiet be quiet的同义句,（ ）（ ）quiet,please. be quiet的同义句,（ ）（ ）quiet,please. Please keep quiet.(变为否定句） _____ _____ quiet please.