I like to sit ... sofa and read a book in the evening.

Solution:

To complete the sentence, we need a preposition that correctly describes the action of sitting on a piece of furniture like a sofa.

1. I like to sit on sofa and read a book in the evening.
2. I like to sit in sofa and read a book in the evening.
3. I like to sit at sofa and read a book in the evening.

Answer: 1. on