Answer:
1. What is the time? - interrogative
2. This is the most interesting book I have read so far. - declarative
3. Watch out! - exclamatory
4. Could you please repeat the question? - interrogative
5. Please pass me the salt. - imperative
6. Check the tyres before you drive off. - imperative
Step-by-step explanation:
A declarative sentence, usually punctuated with a period ( . ), states a fact, offers an explanation, or conveys information.
An interrogative sentence asks a question. It is punctuated with a question mark ( ? ).
An imperative sentence can be punctuated with a period or an exclamation mark ( ! ). It conveys a request, a command, an order, or a suggestions.
Finally, an exclamatory sentence emphasizes something or simply conveys a strong emotion. It is punctuated with an exclamation mark.