why bolt run so fast?

why bolt run so fast? why didi Bolt run so fast?Most people wanted to know.(合并为一句) ___(not run) so fast _____(not run)so fast you shouldn't have run so fast run not so fast as 与doesnt run so fast as区别xiexie run fast 是don't run so fast 还是no running so fast? He cannot run so/as fast as you. why in a hurry why so fast why so quickly 哪个是对的 why are you driving so fast because my filght is() why do you change so fast?which one is you? She can run ______30km an hour.A.as faster asB.so fast as C.so faster asD .as fast as Jack doesn't run _____ MikeA.so fast thanB.as fastly asC.more faster thanD.so fast aswhy ----- that we couldn't catch up with himA so fast he ran B so fast did he run C so fast ran he D such fast did he run最好说明理由 We run so fast as to catch the last bus可以说成We run fast so as to catch the last bus吗? Who can run fast? It can run fast.It run fast.哪个对It can run fast.It run fast.