If the wangba (internet club) has the chinese version you will have to play in Chinese. Unless you have an external hard drive with the French/english version on it that you can copy over each time you go to the wangba. Other alternative is to ask the wangba admin to install the fr/en version on one of the computers for you, so that each time you come you can use that computer.
If you have played wow a lot it shouldnt be too hard using the chinese client...the spell pictures are still the same