Explanation

We use "died of" to indicate the cause of death, especially with diseases.

Example: She died of cancer / cholera / a heart attack.

Explanation

We say “in a factory” because it is an enclosed space.

We say “on a farm” because a farm is an open area of land.

Correct sentence: Would you prefer to work in a factory, or on a farm?

Explanation

Lemon is rich in Vitamin C, which helps boost immunity and improve skin health.

Other citrus fruits like oranges and lime are also high in Vitamin C.

But among the given options, lemon contains the most.

Explanation

He is speaking at the back of his best friend.

At the back of means کے پچھلے حصے میں

Explanation

Reform means ایک نظام، قانون، یا رویے کی بہتری کے لئے تبدیلیاں کرنے کے لئے

Improvement means ایک نظام، قانون، یا رویے کی بہتری کے لئے تبدیلیاں کرنے کے لئے

Explanation

"Turn down" means to lower the volume or intensity of something.

Example: Please turn down the music, it's too loud.

Explanation

"Now" tells when the action is happening — it modifies the verb "is offering", which makes it an adverb of time.

Example: He is eating now. → "Now" tells the time of the action.

Explanation

The original sentence is in present simple active voice.

In passive voice:

Subject becomes object → The students' questions

Verb "answers" becomes are answered (present simple passive, plural subject)

Agent: by the teacher

Final sentence: The students' questions are always answered by the teacher.

Explanation

Indispensable means ناگزیر

Explanation

The phrase "All but nine died" means that 9 sheep survived.

So, the shepherd is left with 9 sheep.