英语改错Our teacher gave us good piece of adviceHe will tell us

Our teacher gave us a piece of good advice.(但有一些人认为a good piece of advice也是对的,现在此处有争议.）
He will tell us some exciting/ a piece of exciting news （同上,news 是不可数名词）this afternoon
He's the person( People 是集合名词,表复数,不能使用与此；person 表示“人”,可数名词.） who likes to help（to do ,应用原型） others
Don't think too much .(不要考虑得太多.这样的表达比较常用.）
Everyone （everyone是一个词,只用来指人,等于 everybody,在它后面不能跟介词of； every one是两个词,既可用来指人,也可用来指物,等于each one,后面可跟介词of.）
should do/ try his best to serve the people
Every one (同上）of the students( ...中之一或之几时,后面的名词为复数）in our class is fond of it
Has anyone（同上,不定代词 anyone ,someone,everyone,no one的用法一致.any one,every one,some one,none 的用法一致） here seen John?
He didn't ask any one（同上） of us to attend the party
I know none（neither 是对两者进行否定；none 是对三者或三者以上的事物进行否定） of the three boys
You may pick up either（either是两者之一；any是三者或三者以上的任何一个；both为两者都） of the two coats
This is the place which/that/ 不填 （ 定语从句的引导词的使用是取决于先行词在从句中成分的.Place 在从句中是visit 的宾语,所以先行词为代词.）we visited last year
This is the place where（同上,因visit 已经有了宾语,所以place 作为地点状语成分出现,引导词为副词） we visited it last year.
Is this the photo you took （定语从句中,先行词原为从句中的一部分,提前之后,从句中不应再出现取代先行词的部分,所以it 应删除.而由于先行词在从句中充当宾语部分,所以引导词可以不填或填which/ that )at the seaside?

Our teacher gave us a good piece of news .
He will tell us some exciting news this afternoon .
He's a person who likes to help others .
Don't thinkso many things
Everyone should try h...

还是我来回答吧：
Our teacher gave us(a) good piece of advice
He will tell us an(去an) exciting news this afternoon
He's people(people--a person此题命题质量较差，不是标准改错) who likes to helps others
Don't ...