shall用作第二三人称表决心许诺意图命令警告的例句要三个,还有shall只能用作第三人称的三个例句,还有get加doing表示安静到动作状态的改变的三个例句,

shall表义务：u shall do as u see me do.he shall be punished if he disobeys.表许诺u shall have my answer tomorrow.she shall get her share.表征求意见what shall he do next?shall i get u some fresh coffee?