Question

Rama and.......
were present in the class correct prounoun

Answer 1

Rama and I were present in the class

Answer 2

Rama and....... were present in the class.

If you ask me to fill in the blank with a pronoun, I would write it as  

Rama and I were present in the class.

I is a pronoun that can be filled in this blank. A pronoun is a word that can take place of a noun. Since I'm not allowed to write a noun in the blank, the proper pronoun to be filled can be 'I'.