True, false, not stated 1.The Earth is the only planet that has life.
2. People cannot take care of the Earth.
3.The Earth is not the largest planet. Mars is bigger.
4. On the earth, there are a lot of environmental problems that arise through the activity of people.
5. The main challenge on the Earth is airborne diseases.
1. When was the telephone invented?
2. I can't give you these articles. They are being translated now .
3. The letter won't be written tomorrow .
4. English is spoken all over the world .
5. She showed me the picture that had been painted by her husband .
6. My dress is clean now. It has been wash ed.
7. All the qustions on the paper must be answered.
8. These houses were built in the 16th century .
9. Tomorrow by 3 o'clock everything will have been prepared .
10. Rugby has been played since 1845 .
11. My house was being painted the whole day yesterday .
12. Flowers are usually sold in the streets .
13. This film will be discussed at the next lesson .
14. Has your composition been written yet?
15. I couldn't use my hotel room because it hadn't been cleaned yet .
16. It was very dark. Nothing could be seen.
17. What is usually made from milk?
18. I'm sure that the invitation will have been received by next Sunday .
19. Wait a little! Your question is being discussed now .
20. The UK is washed by the Atlantic Ocean and the North Sea.