If i had heard the news earlier, I … stayed at home.

Analyze the question

The sentence is: "If I had heard the news earlier, I ...... stayed at home."

The "if" clause uses the past perfect (had heard). This tells us the sentence is a conditional about something that did not happen in the past.

Explain the concept: the Third Conditional

The third conditional is used for unreal or imaginary situations in the past, which means things that did not actually happen.

• Structure: If + past perfect, would have + past participle
• Example: If she had studied harder, she would have passed. (She didn't study hard, so she didn't pass.)

Show the solution

1. The "if" clause: had heard is the past perfect, so the main clause needs would have + past participle.
2. The main clause needs "would have" followed by stayed.
3. Check each option: • A. would have stayed: correct third conditional. • B. will have stayed: future perfect, which does not match a past unreal condition. • C. will not have stayed: also future perfect, and it is negative. • D. would have not stayed: the tense is right, but the word order is unnatural. The standard form is "would not have stayed". It also changes the meaning to a negative.

The sentence means: I did not hear the news earlier, so I did not stay at home. This fits the positive "would have stayed".

Answer: A. would have

Exam tip: When you see "if + had + past participle", look for "would have + past participle" in the main clause. Remember it as: had in the if-part, would have in the result part.