Choose the correct Exclamatory form of the following Assertive Sentence:
It is a very good idea.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → What a good idea!
Assertive to exclamatory:
Pattern: What a + adjective + noun (+ subject + verb)!
| Change | Assertive | Exclamatory | Why |
|---|---|---|---|
| Opening words | a very good idea | What a good idea | “Very” before an adjective + noun is replaced by “What a / What an”. |
| Subject + verb | It is | – (left out) | “It is” may be kept at the end or left out: “What a good idea it is!” |
| End mark | (.) | (!) | The full stop becomes an exclamation mark. |
| Full sentence | It is a very good idea. | What a good idea! |
Example: It is a very tall building. → What a tall building it is!
Why the Other Options are Incorrect?
Option 1: How good idea! — Incorrect. How goes with an adjective or adverb alone ("How good the idea is!"). Before a singular noun the pattern needs What a, and the article "a" is missing.
Option 3: Hurrah what a good idea! — Incorrect. Hurrah is a cry of joy or victory that the original sentence does not contain. It adds a new meaning.
Option 4: O good Idea! — Incorrect. O is used to address someone ("O Lord"). It does not turn a statement into an exclamation, and "very good" is lost.
Contrast: What a goes before an adjective + singular noun ("What a good idea!"). How goes with an adjective alone ("How good the idea is!").