With just weeks to go before a summit meeting on global trade, European and U.S. officials on Monday called for improved access to developing markets while countries like India and Brazil renewed pleas for deeper cuts in farm subsidies by rich nations. In the wood-paneled rooms of India House in Central London, representatives from five trading partners - Brazil, the EU, India, Japan and the United States - sought during a working session, and then over an elaborate Indian buffet dinner, to rescue negotiations for a new global agreement before the Dec. 13-18 meeting of all 148 World Trade Organization members in Hong Kong.