=>
1. hurts
-> Ving đứng đầu làm chủ ngữ -> động từ số ít
2. eating
-> giới từ + N/Ving
3. How's -> What's
-> What's wrong with you? : Có chuyện gì với bạn vậy?
4. obesity -> obese
-> make sb adj
5. Eating -> eat
-> Câu mệnh lệnh, yêu cầu, đề nghị (động từ nguyên mẫu đứng đầu câu)

1. Sitting close to the laptop’s screen hurt – hurts your eyes.
2. You can avoid many diseases by eat - eating healthy food.
3. You look so bad! How’s - What's wrong with you?
4. Eating lots of fast food can make you fat or obesity – obese.
5. Eating - eat more fruit and vegetables to get vitamins, minerals, fiber.
6. Good nutrition is an - a important part of leading a healthy lifestyle.
7. Watch more - less television; if not, your eyes will be tired.
8. I’ve drunk three glasses of beer, but - so I’ve got a headache.