Hi David. Your response presents a clear and well-structured discussion on flu prevention. You effectively highlight the importance of a balanced diet and regular exercise, making your points easy to understand. Your reasoning is solid, and your writing demonstrates a strong grasp of the topic. Keep up the good work!

~ T. Lia

I had the flu twice about five years ago.
>> CORRECT

I know that the flu is completely different from a severe cold because I have experienced it.
>> CORRECT

Looking back at that time, I had an environment where I could get the flu easily.
>> Looking back at that time, I was in an environment where I could easily catch the flu.

I think two things are important to prevent the flu.
>> CORRECT

First, we should look back on our eating habits.
>> CORRECT

It is necessary for us to have a balanced eating habits.
>> It is necessary for us to have balanced eating habits.

It is important to eat foods rich in vitamin C and fiber.
>> CORRECT

In the end, these habits have the effect of enhancing our immunity.

>> In the end, these habits help enhance our immunity.

And secondly, we have to exercise regularly.
>> Secondly, we have to exercise regularly.

Flu is mostly prevalent in the cold winter.
>> The flu is most prevalent during the cold winter.

The cold weather makes us lazy to exercise.
>> The cold weather makes us feel too lazy to exercise.

This habit eventually increases the chances of getting the flu.
>> This habit eventually increases the risk of getting the flu.