News At Seven-Thirty highlights: 13-year-old boy injured in bicycle accident; Prostitute found dead in Tsuen Wan; Retailers do everything to boost business; Thai anti-government protesters held largest rally; APAC leaders vowed against financial crisis; Hu Jintao press for more at APEC summit; Obama promised to fight terrorism in Afghanistan; Stranded pilot whales in Tasmania rescued; Protest against national-security law in Macau; The Frontier will merge with Democratic Party; Two pedestrians knocked down by lorry; Japanese tourist stucked at Mexico City’s airport; Man without limbs spread love and hope.