17 Read and correct the mistakes.
4 Venus is the closest planet to the
1 Mars has oceans on its surface.
The Earth has oceans on its surface.
2 Summers are hot on Mars.
5 The ancient Romans called the
3 People use goggles to look at the planets.
6 The Earth has two moons.
11. I often send emails to my friends
12. I am often sent abroad on a business trip
13. I am often invited to the cinema
14. My sister is often helped at school
15. I sometimes forget to take a travel card
16. I don't write a lot of letters
17. A. Christie's books are read with great pleasure
18. Dogs like bones
19. Dogs are liked in many families
20. When is tea drunk in your family?
21. Where are the old letters kept?
22. Why are these rules always forgotten?
23. Why do you always forget these rules?
24. Where do your friends live?
25. Where is bread bought?
26. When are questions asked?
Объяснение: