英语完形填空题,81.Last year,wedid some ______ (experiment) about el

英语完形填空题,
81.Last year,wedid some ______ (experiment) about electricity.
82.Now there arealways ______ (chemical) in many kinds of food.
83.This soup (汤) is too ______ (salt).I can't drink it.
84.The water inthe river isn't ______ (drink).It's too dirty.
85.The Blacks aretravelling ______ (happy) in Guangzhou.
86.It's ______(fool) of us to waste water or electricity.
87.A moment______ (late),Daisy drank two glasses of water.
88.We mustn'tdrink polluted water.It's ______ (harm).
89.A rice ______(cook) can't work without electricity.
90.There are toomany ______ (rule) in our school.I don't like them

81 experiments 实验,可数名词；82 chemicals,chemical 在这指化学制品,化学成分是可数名词,加上前有 are；83 salty,盐salt 后面加上y,变成对应的形容词；84 drinkable,这里的说太脏了,不可以饮用,所以是drinkable,可应用的；85 happily,用副词修饰旅游这个动作；86 fool,it's+形容词+of sb.to; 87 later,固定短语,a moment later,later on,etc; 88 harmful,形容词,有害的.89 cooker,这句话是说,电饭煲必须要有点才能使用； 90 rules,前面有many