Explanation

The phrase "It is good of him" is idiomatic and commonly used to express appreciation or approval for someone's positive actions or behavior.

Here, "of" is used to indicate that the action of helping in time is a commendable or praiseworthy quality that belongs to him.

Therefore, the correct preposition to fill in the blank is "of".

Explanation

Can use to express

ability or opportunity,

to request or offer permission, and

to show possibility or impossibility. Examples:

ü  I can ride a horse. ability

ü  We can stay with my uncle when we are in Lahore. Opportunity

ü  Any child can grow up to be president. possibility

ü  he cannot stay out after 11 PM. permission

ü  Can you hand me the pen? request

Explanation

“By” is usually a preposition but sometimes acts as an adverb.

Explanation

Generally, objective case comes after a preposition.

Examples:examples: I know about him.

“He” is the subjective case while “him” is the objective case.

"About" is the preposition here.

Explanation

Preposition connect the words

Explanation

We use since from a particular time in the past until a later time, or until now.

Explanation

You use "in" in this sentence because it refers to a period of time that will pass before something happens.

Explanation

Use the preposition 'to' when indicating that there is movement from one place to another. In other words, the preposition 'to' with verbs such as drive, walk, go, hike, fly, sail, etc.

Explanation

کی جگہ استعمال کریں گےAdverb کہیں گے۔ ورنہ یہ اسکو Preposition آجائے تو ہم اسکو None کے بعد ALONGاگر

Explanation

Certain words when used in “Active Voice”  are not followed by any preposition.

“Accompany, affect, consider, compromise, emphasize, resemble, ensure, attack, invade, order, reach, describe, discuss, tell” etc.

I consider him my best friend.