Question

it'scold.改为否定句

Answer 1

it'scold.改为否定句是it isn't cold.
这里教你一种方法：
英语语法中否定句分为九种：
（1）一般否定句
I don't know this.否定句式
No news is good news.否定词no
There is no person smoking here.
（2)特指否定
He went to his office,not to see him.
I am sorry for not coming on time.
I don't think/believe/suppose/feel/imagine you are right.
（3)部分否定
All the answers are not right
All is not gold that glitters.
I don't know all of them.
I can't see everybody/everything.
Both of them are not right.
（4)全体否定
None of my friends smoke.
I can see nothing/nobody.
Neither of them is right.
Nothing can be so simple as this.
（5) 延续否定
You didn't see him,neither/nor did I.
You don't know,I don't know either.
He doesn't know English,let alone/to say nothing of/not to speak of (更不用说） French.
（6) 半否定句
We seldom/hardly/scarcely/barely hear such fine singing.
I know little English.I saw few people.
（7) 双重否定
You can't make something out of nothing.
What's done cannot be undone.
There is no sweet without sweat.
No gain without pains.
I can't help /keep/ laughing whenever I hear it.
No man is so old but (that) he can learn.
（8)排除否定
Everyone is ready except you.
He did nothing but play.
But for your help,I couldn't do it.
（9)加强否定
I won't do it at all.
I can't see it any more.
He is no longer a boy.

Answer 2

isn't

Answer 3

It isn't cold.

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Answer 4

it isn't cold.