hold on to do sth hold on to doing sth ,哪个对

hold on to do sth hold on to doing sth ,哪个对 hold on to do sth 还是hold on to doing sth hold on to doing sth 还是hold on to do sth hold on to sth hold up to 坚持做某事,是hold on to do sth.还是 hold on to doing sth.有何区别? go on to do sth.与go on doing sth. work on doing sth还是work on to do sth? live on 后接doing sth 还是to do sth? move to do sth还是on doing sth? go on doing sth,go on to do sth,continue doing sth,continue go on to do sth ,go on doing sth,go on with sth有什么区别 going on doing sth go on to do