Choose the grammatically correct sentence:

The correct answer is Option (3) → When the temple bell rang, away flew the pigeons from the roof.

“Away” at the start with a noun subject:

• When a sentence starts with “away”, “here” or “there” and the subject is a noun, the verb comes before the subject.
• Here the subject is the noun “the pigeons”, so the order is away flew the pigeons.
• With a pronoun, the subject stays before the verb: “away they flew”.

Why the Other Options are Incorrect?

Option 1: The principal has invited famous someone to open the new science lab. — Incorrect. The option says “famous someone”. With words like “someone” and “something”, the adjective comes after the word.
Corrected: The principal has invited someone famous to open the new science lab.

Option 2: Not once Rohan complained about the long walk to the bus stop. — Incorrect. The option says “Not once Rohan complained”. When a sentence starts with “Not once”, the helping verb comes before the subject.
Corrected: Not once did Rohan complain about the long walk to the bus stop.

Option 4: The well water was too salty that we could not drink it. — Incorrect. The option says “too salty that”. “Too” is followed by “to” + verb, not by a “that” part.
Corrected: The well water was too salty to drink.