答应

answer; promise; agree; undertake; accede to; agree to; say yes to; undertaking

请愿

petition; appeal; plead; request formally; submit a petition; make a plea

要求

require; demand; ask; desire; approach; call; call for; call upon; request; ask for; claim; stipulate; exact; order; take; expect; adjure; invite; bid; assert; requirement; requisition; pressure; stipulation; representation