Complete the sentences with the correct word. Choose from these words: who, whose, whom, which, when.
1. I told you about the woman _______________ lives next door.
2. I don’t like the table _______________ stands in the kitchen.
3. I was invited by the professor _______________ I met at the conference.
4. Do you know the boy _______________ mother is a nurse?
5. A seaman is someone _______________ works on a ship.
6. Last year we spent our holidays in Scotland, _______________ is in the north of Great Britain.
7. The book, _______________ it was finally returned, was torn and stained.
8. I’ll never forget my childhood _______________ I was so happy.
9. The baby, _______________ nap had been interrupted, cried loudly.