Ex3:
1. Phong eats lots of junk food so he is putting on weight.
2. I exercise daily because I want to stay healthy.
3. Sitting too close the TV can hurt your eyes.
4. She often takes some paracetamol if she gets a bad headache.
5. How many calories do you burn to do aerobics for 2 hours?
Ex6:
1. She works in a large company in Ho Chi Minh city.
2. She is a secretary.
3. English.