Travelling

A:    Hey, XXX, This semester is nearing the end. Do you have any plans?
B:    I would like to arrange a journey travel for myself.  ? 
A:    I consider that going travelling is really a good chocie choice. You can look
around, and you will certainly have fun.
B:    Yes. I think so.
A:    So whereabouts have you been for travelling? Which place was the your
favioute favourite?
B:    Let me see. I have been to Shandong, Sichuan, Hunan and last year I went 
have been to Shanghai. Personally I think, Shanghai is my favorite place. There are so many nice buildings, tasty food and the transport there was very convenient.
A:    Oh It sounds fun. So can you tell me some thing something which impressed you in Shanghai?
B:    Yes, the things that impressed me most are were the skyscrapers which have developed everywhere so quickly like the mushrooms after rain. So now, if you take a look at of Lujiazui square, East Nanjing Road, the orient pearl tower and hsbc you will find these parts are flooded with skyscrapers. It’s really amazing!!
A:    It's really cool. Thanks for you sharing. Bye
B:    Bye.

Please note correct position of comma and full stop is imediately after the word as follows:

A sentence. Another sentence.    Correct

A sentence .Another sentence.    Incorrect

The word 'and' is used for the last item in a list. (Again, please note the position of the commas).

I like the colours red, orange, yellow and blue.