1.   so it is good for us to study in it.

2.   I think playing basketball is good to our health, but playing for a long time is harm to our health.

3.   Secondly people in many developing countries can consume high qualitial food which are good to their helth .

4.   Playing computers and going to internet may be good to you, but don't use computer as a video game machine.

5.   Others choose what they think is good to them, so they can learn knowledge and skills from the course although it may not be much fun.

6.   Moreover, it is good to us to communicate with each other who worked in the sociaty .

7.   Social activity is very good to us.

8.   So I say: It is not good to us.

9.   But I think that if we use it properly, it must be good to us.

10.   of course one's relaxing way possible isn't good to another.