为什么不用slower而用more slowlyPeter ran more slowly than Bill。是不是过去式的关系啊？

The slower you drive ,the safer you will be.为什么用slower不用more slowly 为什么不用slower而用more slowlyPeter ran more slowly than Bill。是不是过去式的关系啊？ 为什么要用more and more beautiful而不用more beautiful and more beautiful? 这里的big为什么不用bigger?而用more? 问下下面两个句子是否正确can you speak more slow?can you speak slower?是不是一样啊?为什么?那can you speak more slowly?can you speak slowely?是不是正确了？如果要用slower来形容，怎么说？ 英语翻译为什么用many more blind people 而不用much more blind people?much不是修饰比较级吗? one more hour and i will get the work finished.为什么用这个,而不用given one more hour There will be more people living on the earth.这里用living 而不用live,为什么? mary is much taller than Tina 为什么用much而不用more more than one example is necessary to...为什么用is而不用are? 为什么用much cheaper不用more cheap 妈妈认为我应该多吃水果.翻成英语怎么说?认为为什么用beleves而不用should.多吃为什么不用much而用more jack runs ____ than tomA.much slower B.much fasterC.more slowly D.much more slowly为什么不选CD how long have they （） they ()more than ten years .为什么不用married ,而用been married got marriehow long have they （）they ()more than ten years .为什么不用married ,而用been married got married 哪些词可直接用比较级,而不用more的 better more fast 为什么用better more 而不用faster?我见电影里说 better more fast (你最好快点)fast 有比较级faster 为什么还要用more直接说better faster More than one person was hurt in that accident in 1980.这里为什么用单数was ,而不用复数were mary is more beautiful than anyone else in her class中为什么用any而不用some