please stand up改为一般疑问句,应该怎样改?

please stand up改为一般疑问句,应该怎样改? Please be quiet in the library.改为一般疑问句,怎样改啊 please stand up 怎么改同意句急呀 stand up ,please改反问句 Stand up,please.（改为反义词） Stand up,please.(改为否定句) Stand up,please.改为同义句 Tom,please stand up.改为否定句 He is my teacher?改为一般疑问句 应该怎么改? 改一般疑问句It swims with its head up and tail down改为一般疑问句 i.can,stand.them改为一般疑问句. Tom gets up at 6.00 怎样改为一般疑问句