1 we keep our bodies warm to avoid getting flu and having a cold

→ avoid + V-ing

2 getting enough rest helps you to concentrate on school

→ cấu trúc : S + be + enough + N + to V

3 vitamins play an important role in our diet

→  play an important role : đóng 1 vai trò quan trọng

4 you shouldn't play more computer games in free time 

→ should / shouldn't + V nguyên mẫu : nên / ko nên làm gì

5 the doctor is asking mai some questions about health problems

→ thì HTTD : S + be +V-ing

→ some đi với câu khẳng định / câu mời và some + N số nhiều

1. We should keep our bodies warm to avoid flu and a cold.

2. Getting enough rest helps you concertrate on school.

3. Vitamins play an important role in our diet

4. you shouldn't play more computer games in yout free time

5. The doctor is asking Huy some questions about hiis health problems.