fill in the blank. The man felt exhauasted alter climbing a _________ of stairs.

Sentence:

The man felt exhausted after climbing a flight of stairs.

Explanation:

A flight of stairs is the correct English expression used for a set of stairs between one floor and another.

So:

flight of stairs = a series/set of steps

The sentence becomes:

"The man felt exhausted after climbing a flight of stairs."

Why the other options are incorrect?

• heep ❌ → Not a correct word here (perhaps intended as heap). A heap means a pile of things.
• fleet ❌ → A group of ships, vehicles, or aircraft.
• pack ❌ → A collection of items or animals, like a pack of wolves.

Extra Facts:

English uses special collective nouns with certain objects:

• A flight of stairs
• A pack of wolves
• A fleet of ships
• A heap of sand or clothes
• A bunch of keys
• A bouquet of flowers

These fixed expressions are called collocations, and they are common in competitive exams.

Final Answer: flight