He is traveling______the good of his health 填介词

汉译英The train is traveling_____ _____ _____ _____ sixty kilometers an hour.火车正以每小时六十公里的速度行驶.The train is traveling_____ _____ _____ _____ sixty kilometers an hour. he is he is he is he is what he is what he Yes,he is./No,he He is n___ Jack.He is Tom. ()is he?He is a doctortyhfggfgfgdf he is ten (he)name is tom ] he is poor,he is very happy. he is also 还是 he also is? what is he doing ------he is p______b_______. he is an american=he is ( ) ( ) He is fine.=He is ( ). He is my father,he is my () he is fine 同意句he is -- -- he will is还是he is will