I want to take the coach from Hong Kong Airport to Zhongshan, Shiqi, King Century Hotel.

Will the bus go straight from the airport to ZS? How many stops will there be?

How do we go through the immigration control? ( the bit i am most worried about)

Do we need to get off the bus, then go through immigration into china at some point, then get on a different bus? Please help! How will i know which bus to take? Can they speak english?