If you want to be a successful actor,you___study hard.横线上是填must还是have to?

if you want it to be good If you want to be the best if i say want to be you If you want to be,you will be that you If you want to be a good teacher ,If you want to be a good teacher ,you should be c﹍﹍ of yourself . you need to i_______your tennis skill if you want to be a tennis player 是哪首歌If you are alone,I'll be your shadow.If you want to cry,I'll be your shoulder.If you want a hug If you want to have a good ______with your ______,you should be ____to them.(friend) If you want to be successful,you must make a good e_____快. If you want to be ____,you must keep____ A、health;happily B、healthy;happily if you want to be a good __,you should practice more.(type) If you want to be _______(health),you must exercise a lot. If you want to be a good student,what should you do?回答 If you want to be a Friend of the Earth,you must promise the t____below. if you don't want to be late ,you'd better ()a ()打的 If you don't want to be late,you’的better（）a（）. If you think you're too shy and want to be a little找这篇文章, You have to ______(try) _____(run) more if you want ___(be) a good runner.