I don't believe the young man could run _____ fast _____ 20 kilometres an hour.
问题描述：
I don't believe the young man could run _____ fast _____ 20 kilometres an hour.
A.as;as B.as;like C.much;as D.so;like
请说明选择的理由,
答
as as中间加形容词,表示和什么什么一样
意思是我不相信那个年轻人可以跑到每小时20公里那么快