I know where he lives. The sentence is a –
compound sentence
complex sentence
negative sentence
simple sentence
Explanation:
Correct Answer is: complex sentence
`Where` একটি Subordinating conjunction এবং Relative Pronoun. Subordinating conjunction অথবা Relative Pronoun দ্বারা দুটি clause যুক্ত থাকলে sentence-টি একটি complex sentence ।