Explanation

Present Perfect Tense

Active Voice Formula: Subject + have/has + V3+ object.

Passive Voice Formula: Object + have/has + been + V3 + (By + subject)

Explanation

Active sentences in the present perfect tense have the following structure:
Subject + has/have + past participle form of the verb + object
Passive sentences in the present perfect tense have the following structure:
Object of the active sentence + has/have + been + past participle form of the verb + by + subject of the active sentence

Explanation

Generally gifted, provided and entrusted are followed by With.

Explanation

Generally engage is followed by either To or In.

Here the sentence is showing relationship.

Therefore, To should be used.

Explanation

An adverb is a word or an expression that modifies a verb, adjective, another adverb, determiner, clause, preposition, or sentence

Explanation

“To” should not be used with the following verbs when followed by an object

“Advise, ask, beg, tell, command, encourage, request, inform, thank, welcome, warn, forbid, order, remind, congratulate, compliment”

She informed me of the event.

Explanation

Here undoubtedly means certainly.

Here undoubtedly means without doubt.

Here undoubtedly means بلا شک و شبہ

Explanation

Active voice formula:

Subject + Verb + Object

Passive Voice Formula:

Object + (Be+ V3)+ (By+ subject)

Explanation

Generally in shows position of something or someone.

Explanation

The preposition behind here is used to indicate something that's following or further to the back of something.