I. Tìm lỗi sai và sửa lại
1.Peter was absent from class yesterday because he get a headache.
2. After the invention of special breathing equipments, man could swim free underwater.
3. I eat spinach, but Mom and Dad didn't.
4. He has strong white toothbecause he brushes them three times a day.
5. Minh's brother often causes accidents. He ought to drive more careful.
6. Mother didn't bought me any fruit yesterday.