Explanation

Play fast and loose means to behave irresponsibly or unreliably.

Fits the context of someone whose help cannot be trusted.

Explanation

"Them" is the object of the verb "discard."

Objective pronouns receive the action in a sentence.

Explanation

"Frustrated" is the correct adjective to describe how someone feels.

"Frustrate" is a verb.

"Frustrating" describes something that causes frustration.

Explanation

Misspelled means غلط ہجے

Explanation

The phrase “got bored with the book” is a natural and grammatically correct expression.

It indicates that you lost interest in the book quickly.

Explanation

Until is a conjunction.

Until means جب تک 

Until is correct because it indicates the time before spring arrives when preparation is needed.

Explanation

AGGRESSIVE means جارحانہ

Quarrelsome means جھگڑا

Explanation

Louse is an irregular noun; its plural form is lice.

This follows the same pattern as mouse → mice.

Explanation

Abash means شرمندہ کرنا

Proud means فخر کرنا

Explanation

Casual means اتفاقی ۔ عارضی ۔ دیو سنجوگی اتفاقیہ ۔ حادثاتی

Incidental means اتفاقی ۔ عارضی ۔ دیو سنجوگی اتفاقیہ ۔ حادثاتی