Explanation

The given sentence is in past perfect passive voice: "had been bribed."

Active voice of past perfect: Subject + had + past participle, hence "They had bribed the officer."

Explanation

Why has the mirror been broken by you?

This is a present perfect interrogative sentence in passive voice.

Structure: Why + has/have + object + been + past participle + by subject.

Explanation

The teacher said that two and two is four.

Universal truths or facts remain unchanged in indirect speech.

Since "Two and two is four" is a mathematical fact, the verb "is" stays the same.

Explanation

She told Hyder that she had gone to Islamabad the previous week.

"Said to" changes to "told", and the pronoun "I" changes to "she".

"Went" (past simple) changes to "had gone" (past perfect) in indirect speech.

"Last week" becomes "the previous week."

Explanation

The subject is "The number" (singular), so the verb should be "was" (not "were").

Corrected sentence:

"The number of candidates who appeared in the CSS examination this year was very large."

Explanation

The subject "The quality" is singular, so it should take "is" instead of "are."

Correct sentence: "The quality of these goods is well known."

Explanation

The word "information" is uncountable, so we do not use "an" before it.

Correct sentence: "The information they provided was highly suspect."

Explanation

Elevate means اعلی پوزیشن یا سطح پر اٹھانا یا بڑھانا

Raise means اعلی پوزیشن یا سطح پر اٹھانا یا بڑھانا

Explanation

Consolidate means ساتھ لانے یا مضبوط/متحد بنانے کے لئے

Combine means ساتھ لانے یا مضبوط/متحد بنانے کے لئے

Explanation

Mammoth means بڑا

Small means چھوٹا