Question

it cost him a lot. change into tag question

Answer 1

$\textbf{\large{Answer -}}$

Main sentence :

It cost him a lot.

Sentence with question tag :

It cost him a lot, isn't it ?

Explanation :

When we add a question tag to a sentence, the degree of the question is kept opposite to the sentence.

Answer 2

So how do we form question tags?

We add a clause in the form of a question at the end of a sentence. If the main part of the sentence is positive we usually add a negative question tag.

It’s a bit early, isn’t it?

If the main part is negative, we usually add a positive question tag.

Mum isn’t in trouble, is she?❇️❇️❇️