GREENSQUAR thank you for your words, really relax me!!!, you have right theres no reason to be affraid, i'll go to have a nice trip, to know nice city and to KNOW!!! everything...
ELLYSE Thank you very much for your assistance, our dates are: October 14th to 17th Beijing and 17th to 19th in Shangai. If you can show us around and make the travel to Beijing and Shangai, off course we can pay your train ticket. How much is the cost?
If you think is a lot time to stay in Beijing, we can meet us in Shangai too. Let me know.
Hullo! I'm sorry I haven't replied earlier but I just sent you an email reply. I'm still travelling in Yunnan province at the moment but will be happy to show you around Beijing and Shanghai when you come. Let's discuss the details on email.
Agree with most of the posters, but object to HK being labeled only for shopping. There is much more to it than most tourists ever know. I lived there for almost a year and got to know the city quite well. Take a look at my travelblogs for details on fun & cheap excursions around the city, exploring, hiking, etc:
If you want to do justice to HK, give it at minimum 4 days, even better to give it a week, but you may not have that much flexibility in your schedule.
For China mainland - As the others said, don't worry about the language barrier. Get a pocket sized Mandarin phrase book - it's good for learning a few basic words, but even better for pointing to a phrase. The Chinese seem to enjoy these phrase books so don't be surprised when they take it and study it for a while...
For HK - everything is in English as well as Chinese. Most locals know a bit of English so it isn't hard to communicate. When you are bargaining it will/should be done using a calculator so that mispronunciation won't be an issue (sixty sounds an awful lot like sixteen and that's a big difference in dollars!)
The first time I visited Beijing I was there for only 3 days and was able to pack in a trip to the wall at Simatai, the Forbidden City, Summer Palace and a bit of shopping. The hotels can arrange the trip to the wall, but do a little price comparison before committing as it is likely that no matter which hotel you book it at will end up being the same tour service. Let's say you stay at hotel #1 and they charge 150RMB, and next door hotel #2 has a tour for 120RMB - just book it at the cheaper hotel and wait for the pick up van at hotel #2.
For the most part, steer clear of any Chinese on the streets near or in a tourist sight who call themselves students and who speak good English - they are out to scam you for something. Though it's probably nothing bad, you'll just be a lot poorer afterward.