Multiple choice

Directions: Complete the following simile.

As ______ as a whistle.

  1. clean

  2. vacuum

  3. dustless

  4. unstained
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The idiom 'as clean as a whistle' means extremely clean, spotless, or pure. Whistles were traditionally made of metal and kept very clean for hygiene and to produce clear sound. The expression emphasizes complete cleanliness.

Keep practicing — related questions