demeter和气味图书馆:how long is human's small and large intestine

how long is human's small and large intestine How long is a shoe ? How long is a shoe? Tim is in Australia.How long _____ there? how long way it is 这个句子对不对,为什么? Which is the longest river in china ?How long is it? How Come How Long 是什么意思 ？？ How long ()since I bumped into you at McDonald?选 is it ，was it为何不对？ What amazed me is how long he managed to hide it from me How far is it from Beijing to Shanghai?How long will it take to go Beijing by train/plane?