Choose the words that can best replace the underlined phrases:“Worldl…

The correct answer is Option (1) → ephemeral, banal

• Ephemeral means lasting for only a very short time, so it replaces "in existence only for a short while".
  Example: Fame on social media is often ephemeral.
• Banal means ordinary and dull, with nothing new or interesting, so it replaces "ordinary" in the second phrase.
  Example: The speech was full of banal remarks about hard work.

Why the Other Options are Incorrect?

Option 2: inveterate, sagacious — Incorrect. Neither word means short-lived or ordinary.

• Inveterate means habitual, long-established.
  Example: He is an inveterate gambler.
• Sagacious means wise and showing good judgement.
  Example: The sagacious minister calmed the angry crowd.

Option 3: fleecy, cagey — Incorrect. Neither word fits either phrase.

• Fleecy means soft and woolly, like a sheep's fleece.
  Example: Fleecy white clouds floated across the sky.
• Cagey means unwilling to give information, secretive.
  Example: The actor was cagey about his next film.

Option 4: somnolent, verbose — Incorrect. Neither word fits either phrase.

• Somnolent means sleepy.
  Example: The heavy lunch left the students somnolent.
• Verbose means using more words than needed.
  Example: His verbose answer ran to six pages.

Note: "Banal" covers only the "ordinary" part of the second phrase; no option offers a word that also carries the sense of "disapproving". Option 1 is the answer because "ephemeral" fits the first phrase and no other option fits either phrase.