1. The flip flops are made of rubber.
2. The panama hat is made of straw.
3. The tie is made of cotton.
4. The tuba is made of brass.
5. The cup is made of porcelain.
6. The bridge is made of wood.
7. The ceiling lamp is made of glass.
8. The mug is made of clay.
9. The brooch is made of felt.
10. The bucket is made of plastic.
11. The bucket hat is made of denim.
12. The bench is made of concrete.
13. The wallet is made of leather.
14. The tank top is made of cotton.
15. The pocket watch is made of gold.
16. The medal is made of silver.
17. The tombstone is made of marble.
18. The ball of thread is made of wool.
19. The wall is made of stone.
20. The box is made of cardboard.
21. The candle is made of wax.
22. The saucepan is made of aluminum.
23. The cannon is made of bronze.
24. The nail is made of iron.
25. The plane is made of paper.
26. The carpet is made of fur.
27. The castle is made of sand.
28. The wire is made of copper.
29. The ladder is made of aluminum.
30. The helmet is made of carbon fiber.
Объяснение:
ответ:1. He had been doing his homework for 2 hours before his mother came 2 Ms. Brown had been working as a teacher for ten years before she left his job. 3. 1 Had been waiting for 15 minutes when the train arrived. 4. I got a bad mark for my test because I had made a lot of mistakes in it. 5. Olga looked tired because she had been cleaning her room all day, 6. Tom and his father were very hungry because they had been doing the gardening all day 7. He had been driving for 6 hours when suddenly the car broke down. 8. I didn't get a good mark because I had left my exercise-book at home. 9. By 7 o'clock the rain had stopped 10. Jane was late because she had missed the bus. Насчет 10го не уверена только
