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II/
1. What an exciting story!
2. The dishes which my mother has cooked are so hot.
3. If my English were very good, I would feel confident at interviews.
4. My brother is a university student.
5. I picked up a few words of English on holiday.
6. You should read short stories in English.
IV/
1. The professor whose course I am taking is excellent.
2. I saw a lot of people and horses that went to the market.
3. I recently went back to Paris where I was born nearly 50 years ago.
4. Do you know the music which is being played on the radio?
5. You didn't tell us the reason for which we have to cut down our daily expenses.