Complex sentence: Secondly, according to the Hong Kong Basic Law, new immigrants need to wait 7 years to become permanent Hong Kong residence, so poor immigrants might only able to stay in bedspace apartments until they receive a Hong Kong ID card.
Split into simpler sentences: Secondly, according to the Hong Kong Basic Law, new immigrants need to wait 7 years to become Hong Kong permement citizens. As such, poor immigrants might only able to stay in bedspace apartments until they receive a Hong Kong ID card.