Identify the Assertive sentence:

The correct answer is Option (4) → Nobody in our colony knew that the water supply would stop on Sunday.

Assertive sentence:

• An assertive sentence states a fact. It ends with a full stop. It can be positive or negative.
• This sentence tells us a fact about the colony. “Nobody” makes it negative, but it is still a statement.

Why the Other Options are Incorrect?

Option 1: Let us water the plants in the school garden first. — Incorrect. It makes a suggestion with “Let us”, so it is an imperative sentence.

Option 2: Haven’t you finished your science project yet? — Incorrect. It asks a question, so it is an interrogative sentence.

Option 3: What a lovely kite Kavya has made for Sankranti! — Incorrect. It shows strong feeling with “What a”, so it is an exclamatory sentence.