IV. Fill in the blank with a suitable preposition.
1. Look at the board, please.
2. My father works at a multinational corporation.
3. Our children are at school every day.
4. We are looking for a flat to rent.
5. My sister never goes out on Friday nights.
6. Her husband gets home very late at night.
7. The man was very angry with the boys because they broke the window.
8. It's quarter past eight. It's 7.45 p.m.
9. This morning he came to work by bus.
10. Can I pay by cheque or credit card?
11. Would you like a salad for lunch?
12. The fortune teller said that I'm going to fall in love.
13. Water is good for you.
14. English is spoken all over the world.
15. Alexander Graham Bell was born on March 3rd, 1845 in Scotland.
16. Our teacher was talking about how to protect the environment all morning yesterday.
17. I'm afraid Mr. Young is not in the office at the moment.
18. He took part in nuclear research.
19. She is very afraid of snakes.
V. Choose the suitable word to complete the passage below.
(1) fascinated (2) mechanical (3) dangerous (4) research (5) effects (6) advantages (7) development (8) beneficial (9) harmful (10) countries