下句中的横线是填as还是as it?为什么?

as as的用法,“It is not as easy as you think.”一句中的as as 可以换成什么 It happened------in a nightmare!横线处应填as还是like as...as adj.比如 as fast as 请问像这个结构的是放在句首还是句尾?请举例子说明下. "Please practice as _____ ( much ) as you can"为什么横线中填"much"而 Much ______I like the car,I can't afford it.是填although 还是as as much as ()填possible还是possibly 英语翻译前面一个as 是as.as用法还是别的用法?如果是as.as用法为什么有点奇怪 英语翻译中文“Please confirm it as soon as possible.”这句英文是对的么?还是应该是 I think Bill did just __________Henry.为什么答案是as well as.填 AS that kind of computer is not as as it says中间应该填good还是well as time （）是填went by还是going by?为什么? Let ( ) sing a song together .是填is us 还是 as 为什么