【明報專訊】ZHANG DEJIANG, Chairman of the Standing Committee of the National People's Congress, is to visit Hong Kong next week. He is the most senior official among the Chinese establishment responsible for Hong Kong and Macao matters. At a time of instability in Hong Kong and public unease, it has attracted widespread attention what signals Zhang's visit will give. Equally important is the fact that Zhang is to meet and interact with people from all sectors during his Hong Kong visit. That will be an opportunity to present one's views to him.