Multiple choice

If he _____ careful, he wouldn't have fallen.

  1. he'd been

  2. would have been

  3. were

  4. would be

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

This is a third conditional sentence, describing a hypothetical past situation. The structure requires 'had' plus the past participle in the 'if' clause, which is abbreviated as 'he'd been'.