Identify the Affirmative sentence:

The correct answer is Option (4) → Ritu failed to catch the school bus this morning.

Affirmative sentence:

• An affirmative sentence has no negative word such as “not”, “never”, “no” or “nothing”.
• “Failed” has a negative meaning, but it is not a negative word. The sentence has no negative word, so it is affirmative.

Why the Other Options are Incorrect?

Option 1: My cousin never forgets to call me on my birthday. — Incorrect. It uses “never”, so it is a negative sentence.

Option 2: Nothing in the old storeroom could be sold. — Incorrect. It uses “Nothing”, so it is a negative sentence.

Option 3: The library van did not visit our village last month. — Incorrect. It uses “did not”, so it is a negative sentence.