THE Government is determined to have Hongkong representation on the British team should talks take place with China on political reform, with the Secretary for Constitutional Affairs, Mr Michael Sze Cho-cheung, expected to be the second most senior memberof the British negotiating team. The British team would be led by the British Ambassador to China, Sir Robin McLaren, and include Mr Sze; the Hongkong Government's Political Adviser, Mr William Ehrman; and the head of the Foreign Office's Hongkong Department, Mr Peter Ricketts, according to British thinking. This is in sharp contrast with Beijing's view that Hongkong officials should not only be excluded from talks but serve only as support staff to Sir Robin's team. Sharp differences between the two sides continue to prevent Beijing and London from making any announcement on when the talks can begin. The Governor, Mr Chris Patten, and his top policy advisers will assess the latest situation at today's Executive Council meeting. Mr Patten is also expected to be grilled by legislators at a question time session at the Legislative Council on Thursday afternoon. Dissatisfied with Mr Patten's answer at last Friday's special Legco meeting to explain the reason for delaying the gazetting of the bill for the 1994/95 electoral arrangements, liberal legislators want to press the Governor on the subject and demand no further delays in gazetting the bill. The China News Service yesterday issued a dispatch from Beijing quoting the director of the local branch of the New China News Agency, Mr Zhou Nan, that he welcomed the British side's willingness to talk on the 1994/95 electoral arrangements. ''Obviously, to genuinely resolve the problem, the British side will have to first demonstrate its sincerity, totally abandon its wrong ideas and return to the path of the Joint Declaration, the previous agreements reached between the two sides and the principle of convergence with the Basic Law,'' said Mr Zhou. ''China will not trade on principles. The Hongkong question is entirely a matter for the two sovereign powers and no third party should be allowed to be involved.'' A Hongkong China News Agency signed commentary issued yesterday also suggested that a number of obstacles remained unresolved which prevented both sides from deciding on the date for resuming talks. The commentary said a major stumbling block was Britain's refusal to guarantee that any deal reached would be fully implemented and a second problem was Hongkong representation on the British negotiating team. The British side is understood to be firm that Mr Sze not only be included on the team but is second to Sir Robin. Britain maintains that as long as China agrees on who heads the British delegation, the rest of the team should be a matter for the British to choose. On the guarantee that any deal reached must be implemented, a source said such a demand had never been put to the British team officially. Another sticking point is China's demand that except for the first round of negotiations, the two sides should not announce the date and place for holding the further round of meetings. However, the British side is understood to have maintained that keeping the content of the diplomatic exchanges confidential would be in line with diplomacy but denying the public information on when and where negotiations are to be held would be tantamount to conducting secret talks.