1, I have learnt English since I was in grade .
2, My roommate who has never been on the Internet is afraid of computers.
3, My stereo which worked yesterday doesn’t work today.
4, The woman whom I was sitting behind was wearing a green hat.
5, The building which you can see in front of you is the town hali.
6, The children whose parents work abroad are studying there.
7, The girl whom I first met at park is standing there.
8, My brother hasn’t been beaten at tennis.
9, The letter has not been sent to me by them.
10, Has this novel been read by you?