TWO brothers and their wives who went to China for the Ching Ming festival were hurt in an accident in Kaiping, Guangdong province. Cheng Cheuk-wan, 52, his wife, Wong Yue-sau, 34, his brother, Cheng Cheuk-sun, 40 and wife, Lai Wai-ming, 35, returned to Hong Kong by ferry from Jiangmun last night and were taken to hospital. Four other people were also injured when the couples' van was in collision with a taxi. The brothers and Ms Wong were discharged after treatment. Ms Lai was in a ''satisfactory'' condition in hospital last night.