1. Tom,________ sits next to me, is from Canada. A. whom B. which C. that D. who 2. The woman to ________ you talked yesterday is a professor at Oxford university. A. whom B. which C. whose D. that 3. He was the last person____________in this way. A. to be kill B. who killed C. being killed D. to be killed 4. The energy __________by the windmills drives all the drainage pumps. A. produced B. which produces C. producing D. that is producing 5. The amount of solar energy can be changed________ electricity. A. to B. into C. from D. in 6. The concert ____________I listened last weekend was boring. A. to that B. for which C. for what D. to which Exercise 2. Fill in the blanks with: who, whom, which, whose, that 1. Let me see all the letters _________you have written. 2. Is there anyone ________ can help me do that? 3. Mr. Brown, _______ is only 34, is the director of this company. 4. The chief of Police, _____ work is very important, takes care of the public safety. 5. It was the nurse __________ told me to come in. 6. The teacher with ________ we studied last year no longer teaches in our school. 7. We saw many soldiers and tanks __________ were moving to the front. 8. We have just met the young scientist to ______ the committee will give the first prize. 9. Love, ____ is a wonderful feeling, comes to everyone at some time in his/her life. 10. Dr. Fleming, _______ discovered penicillin, was awarded the Nobel Prize for medicine in 1945. Exercise 3. Rewrite the following sentences. 1. He gave me a lot of advice. Much of them was very useful. (Use a relative clauses)  He 2. The girl is John’s sister. I introduced you to her. (Use a relative pronoun with preposition)  The girl Good luck to you.