On the subject of doing Chinese alongside your degree, even when you cannot officially combine it as part of your degree (e.g. BA Business & Chinese), it’s very common for universities to let you take the odd module in a foreign language as part of your degree e.g. http://www.kcl.ac.uk/artshums/depts/mlc/study/modules/index.aspx
You may also want to think about studying abroad for a semester or a year - it can be a very positive option.