Multiple choice

Directions: Fill in the blank with most appropriate word.

This stool is made of ________.

  1. iron

  2. irons

  3. ironing

  4. ironed

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct answer is 'iron' - when naming materials like iron, gold, or wood, we use the singular uncountable form. 'Iron' refers to the metal itself, not individual pieces, so it doesn't take a plural form.