Should it the Olympics be held Olympics? *IT IS MERELY AN ASSUMPTION TO PRACTICE WRITING.

Always check your word order in a sentence or question.

I believe one of the Japanese cities should invite the Olympics to come to their city because it would be profitable for us.

We use 'the' because we are being specific 'Japanese cities', 'the Olympics'. 

When we use 'invite' we normally say why we invite them.

Check your dictionary for the difference between 'profit' and 'profitable'.

Of course, it costs too much for all of the Japanese people to invite the Olympics in to Japan, so maybe there would be a lot of criticizes criticism against inviting.

Check subject + verb agreement 'it costs'.

Check your dictionary for the difference between 'criticize' and 'criticism'.

However, the more foreigners come to Japan, the more prosperity Japan could develop. For example, as it is seen to by the Chinese, those who come to Japan to go to the Olympics would buy Japanese products, what we call "Bakugai." On the contrary, if Japanese corporations concerned with the Olympics sell Olympic productions products, something cute, cheap or delicious, Japan would get more profits than cost to prepare for the Olympics.

In conclusion, holding Okympics the Olympics in Japan would be good for us.

Check your dictionary for the difference between 'production' and 'product'.

Please ask me any questions you have about the corrections I made.