News At Seven-Thirty highlights: Kowloon Motor Bus and Long Win Bus will put up fares by more than 3% on May 15th; officials are still keen to complete Hong Kong Zhuhai Macau Bridge by 2016; Standard & Poor’s issued an unprecedented warning to Washington; EU pledged 110m euros towards the cost of building a new shell over the Chernobyl main reactor; China apparently staged a second test flight of its new stealth fighter; U.N. says the Libyan government promised humanitarian aid workers to access; former members of Yemen's ruling party formed a new political bloc to support anti-government protest; Britain's police force is taking no chances ahead of the royal wedding; police found about 50 kg of fireworks at an abondoned warehouse in Yau Tong; Ombudsman criticised government for failing to tak action against illegal structures; mainland authorities are making preparations to turn Beichuan into a memorial park; Chinese-American composer Zhou Long won Pulitzer music prize.