Explanation

The correct idiom is "put on airs", which means to act superior or pretend to be better than others.

"Airs" is plural and fits the idiom correctly.

Explanation

Sometimes, Prepositions are inserted where they are not required.

Where have you been to? (Incorrect Sentence)

Where have you been? (Correct & Complete Sentence)

Where have you been means آپ کہاں تھے

Explanation

Hear from means کسی سے باتیں کرنا

Heard of means سننا

Of is a preposition here.

I heard of this event in Islamabad last night.

Explanation

This sentence belongs to Present Perfect Tense.

We use (has with singular noun) in this tense.

Third form (finished) of verb is used.

She has finished her knitting and is now going to read a story book.

AGM 09-2-2023

Explanation

The phrase implies that instead of feeling proud of your conduct, you should feel ashamed if your conduct is improper or inappropriate.

Explanation

"The clerk distributes the sorted mail."

کلرک ترتیب شدہ میل تقسیم کرتا ہے۔

"Sorted" describes the mail that has already been organized.

Explanation

Generally shy is followed by of.

Of is a preposition here.

Shy of someone means کسی سے شرمانا

I am shy of him. 

Explanation

Ashamed is generally followed by of.

Explanation

"How much do houses cost where you live?"

Explanation

Bear with pranks.

Pranks means شرارتیں