改被动句we press the keys but find nothing on the screen

小学英语同义句转换We press the keys but fnd nothing on the screen（改为被 Nothing ________(appear) on the screen. screen the movie with the press Nothing appears on the screen,is it?（改错） press the button until it appears pressed down on the screen We heard nothing in the evening怎么改同义句 we should speak to the old politely改被动句 the keys are on the table改一般疑问句 1:The keys are on the dresser?(改一般疑问句) The keys are on the desk(改为否定句) The keys( )( ) on the desk. keys/you/the/set/of/find/must连词成句 连词成句：keys you the set of find must