Your problem is not Chinese History but your grade in Biology
As one example, the HKDSE entry requirements for MPharm at Bath are
5, 5, 4 in Chemistry, a second science and a third elective subject
or 5, 4 in Chemistry and a second science subject plus 5 in core English or Mathematics.
You can't just 'convert' what you think is the equivalent of HKDSE to A levels - it is not as simple as that.
You need to find out exactly what the specific HKDSE requirements are for each individual Uni.
If its not on their website, just email and ask.