Question

If he _____ the warning, the accident would not have happened.

• A. obeyed
• B. had obeyed
• C. has obeyed
• D. would obey

Answer 1

Answer:

B. had obeyed

• This is a Third Conditional sentence.

• Structure: If + Past Perfect, would have + past participle

• had obeyed is past perfect, used to talk about an unreal past situation.

👉 Meaning:
He did not obey the warning in the past, so the accident happened.

This sentence shows past regret or criticism.