Đáp án :
1. John has a headache and he will be examined soon.
2. He will feel better if he gets up early every day.
3. Computers should not be used for long hours without a break.
4. Dancing keeps her busy at weekends, and she likes that.
5. Most of the food was eaten before I got to the table.
6. Those muffins were cooked by my grandmother last Friday.
7. You shouldn't eat too much food before you go to bed.
8. The sports activities are usually organized by our teacher.
9. Yesterday, I had a stomachache because of eating sour fruits.
10. Something must be done about the problem.
@thihuyenha915#