The Sentence

Always remain cool.

Step 1: An imperative sentence expresses a command, request, or advice. Step 2: 'How beautiful the sunset was!' expresses strong feeling – it is exclamatory. Step 3: 'The train arrives at six' states a fact – it is assertive. Step 4: 'Did you finish your homework?' asks a question – it is interrogative. Step 5: 'Always remain cool' gives advice to someone, which is a characteristic of an imperative sentence.

Exclamatory

Step 1: An exclamatory sentence expresses a strong feeling or emotion and ends with an exclamation mark (!). Step 2: The sentence begins with 'What a' – a common pattern for exclamatory sentences. Step 3: It expresses admiration and strong feeling about Tansen's singing. Step 4: It ends with an exclamation mark (!), confirming it is exclamatory. Step 5: Therefore, this is an exclamatory sentence.

Capital letter

Step 1: There are basic rules for writing a sentence correctly. Step 2: Every sentence must begin with a capital letter – this is a fundamental rule of English grammar. Step 3: A sentence ends with a full stop (.), question mark (?), or exclamation mark (!) depending on its type. Step 4: A comma and a small letter are not used to begin a sentence. Step 5: So the correct answer is 'Capital letter'.

How did Tansen become such a great singer?

Step 1: Interrogative sentences are of two types – yes/no questions and wh-questions. Step 2: Yes/no questions can be answered with 'Yes' or 'No'. For example: 'Are you coming?' – Yes/No. Step 3: Wh-questions begin with question words like when, who, why, where, what, which, and also 'how'. Step 4: 'How did Tansen become such a great singer?' begins with 'How' – a question word. It cannot be answered with just Yes or No. Step 5: Therefore, it is a Wh-question.