Choose the option that is the correct direct form of the sentence.
The teacher mentioned that she had been reading that book before she lost it.
1
The teacher mentioned, "I had read that book before I lost it."
2
The teacher mentioned, "I was reading that book before I lost it."
3
The teacher mentioned, "I have read this book before I lost it."
4
The teacher mentioned, "I have been reading this book before I lost it."