Zdania - następstwo czasow

Czy te zdania sa poprawne?
1. When he fell asleep, he has been reading for almost four hours.
2. I had known her for 3 years before I asked her out.
3. At this time tomorrow we will have received our exam results.

1 źle, nie bedzie tu present perfect cont.

reszta wydaje sie ok

1. (...) he had been reading...

teraz wszystko ok