III,

1. is -> was

2. inviting -> invited

3. enjoyed -> enjoy

4. should -> shouldn't

5. withdraw ->withdrawn

6. must followed -> must be followed

7. will be enrol -> will be enrolled

8. should followed-> should be followed

9. mustn't -> hadn't to

10. must -> have to

11. sound -> sounds

12. told -> tell

13. serve -> served

14. will -> would

15. must held -> must be held

16. be fully acquaint -> be fully acquainted

IV,

1. A chance can be given to him to study abroad.

2. Water on the table or the floor mustn't be spilled.

3. The dining table should be cleaned after each meal.

4. New employees will be enrolled to finish the project earlier.

5. Smartphones might be exported in the future.

6. A new computer will be bought for me this month.

7. Your homework should be finished by you before going to school.

8. The house can't be cleaned by my younger brother since he's too small.

9. The truth about his father's illness will be told him.

10. Dinner must be cooked by Nam for his family today.

11. Two foreign languages can be learned by her at the same time.

12. The project will be finished at the end of this month.

13. The rules and regulations in the office must be followed.

14. The food and water could be delivered to the area soon.

15. The chores should be done by children in their free time.

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I,

1. The government ignored their idea.

2. Emmeline Pankhurst (1858-1928) and her daughters, Christabel and Sylvia.

3. Many women were force-fed when they went on a hunger strike.

4. Because of the interests of national unity.

5. Women over 21 are allowed to become Members of Parliament, but they still couldn't vote in elections if they were under 30.