Which is not a noun?

Hari did not hit him hard- Type of sentence?

Alas! he failed again.The underlined word is __________.

Varsha loves her pet dogs very much.Type of sentence?

He ate the cheapest food. The italicised part is

It is a story without any truth.The italicised part is a __________.

A sad story.

She wrote a letter.The underlined word is _______.

 Which is not a plural noun?

We were flying above the clouds-which part of speech?