1. went

2. do not visit

3. Did your mum make

4. sent

5. do

6. traveled

7. Did you have

8. arrived / checked

9. received

10. worked

11. went / watched

12. eats / ate

13. drink 

14. took

15. did your grandpa come 

16. did not read

17. were

18. did you not help / was

19. catches / brings

20. meet

21. Does he often sing

22. were

23. did not buy

24. walks

25. Did Nick repair

26. does not work

27. Does Victoria drink

28. do not ride

29. do they never eat

1. A. hard

2. C. saying

3. A. healthy

4. D. by

5. D. also

6. C. useful

11. A. terrific

12. D. wrap

13. C. charity

14. B. celebrate

15. A. support

16. A. That's fine

17.  B. fond 

18. A. Although 

1. My mother will make a big meal tonight.

2. I will finish work at 6 p.m.

3. I will not have a birthday party this year.

4. My friends will not come tonight.

5. I will not come to class tomorrow.

1. My friends will not go out with me tonight.

2. He will not catch the train to London at 9 o'clock.

3. I will not go to Ho Chi Minh next month.

4. My grandmother will not visit us on Saturday.

5. Will you not stay home this weekend?

1. Since I like to eat at my uncles' house, who is an excellent cook.

2. The weather on Sunday was rainy and cold, so the family enjoyed an indoor picnic.

3. Thanks to the farmers' application of new technology in their fields, the output of rice was raised.

4. The family were sleeping, while the mouse ran through the kitchen and ate the bread.

5. I threw my dog's ball in the pool, but she was too scared of the water to go and get it.

6. It's supposed to rain today, therefore you should bring your umbrella with you.

7. Despite living farther away from my family now, I make a greater effort to see them at least once a month.

8. We will have to consider joining another club, unless you make improvements for yours.

9. The date of the exam needs to change when many people will be busy on that date.

10. An elephant is the largest land animal, which may live 70 years.

11. D. but

12. B. job

13 C. who

14. B. comfortable

15. A. ways

1. Will an electricity failure happen if fossil fuels run out one day?

2. Last year, they placed solar panels on the roofs of houses to produce hot water.

3. Many countries are now reducing energy consumption as much as possible.

4. Fossil fuels are limited and they are harmful to the environment.

5. Solar energy is clean and emits fewer greenhouse gases than fossil fuels.

6. Last year, we fitted solar panels to our house to provide solar electricity.

7. Every day, we rely on energy to provide us with electricity, hot water, and fuel.

8. Will electric cars become more popular than petrol cars in the next 15 years?

1. My friends will not go out with me tonight.

2. I will not go to Ho Chi Minh City next month.

7. failed

8. walking 

9. smoking 

10. Realizing

11. going

12. to be believed

13.  left

14. ring.

15. crying

16. be

17.calling

18. to arrive / rising

19. sawing

20. Being told / to say / to answer