They aren,t there now

They aren,t there now They must be there now,aren't they?这里为什么不是mustn't they而是aren there are .反问句式 aren't they They aren't standing there.改为一般现在时. they aren't there还是they not there 改病句Are there any sweets?No,they aren't. There aren't many pandas( ).They're enangeredanimals.we must There aren't any children in the room ,are they? There aren't many pandas________.They're endangered animals they aren't They aren't English no,----(they)aren't.