三个中只有 insist on doing 是对的. insist on doing sth,= 坚持做某事 例句: The old man insisted on completing the marathon,even though he was exhausted. 老人坚持完成马拉松,即使他已经精疲力竭了.
insist on doing sth insist 1、意思是“坚持要”表示命令、要求,其后之宾语从句要用虚拟式动词原形 或者“should + 动词原形” 例句: I insist that you (should) be present. They insisted that she (should) be invited.