原文をできるだけ変更せずに、スペルや大文字・小文字、文法や構文の間違いだけを修正しています。
あくまでも一例ですので、参考にしてください。
I think the number of people don't have a television at home will increase in the future.
→ I think the number of people who don't have a television at home will increase in the future.
I have two reasons why I this so. → I have two reasons why I think so.
First, It save a lot of money. → First, it saves a lot of money.
For example, people can get intormation on smartphone, and by dang so they improve tre quality of life.
→ For example, people can get information on their smartphones, and by doing so, they can improve their quality of life.
Second, It is good for their helth.→ Second, it is good for their health.
They talk their family and play sports with frends when they dont have a television, and as a result
they can relax.
→ They talk with their family and play sports with friends when they don’t have a television, and as a result, they can relax.
For these reason that I mantioned, I belive the number of people don't have a televison at home vill increase in the future.
→ For these reasons I mentioned, I believe the number of people who don’t have a television at home will increase in the future.