China's stock market has been swinging wildly, and CNN's Andrew Stevens is here now to answer your questions. What would you like to know? Update: The Q&A has finished -- you can see the best of Andrew's answers here: http://cnn.it/1IO4nps | CNN International

In 1997, Andrew Stevens was reporting the night Hong Kong was handed back to China. Here's his account of that night: http://cnn.it/2t0AP65 | CNN International

Cat Stevens became world famous in the 1970s with songs like "Morning has Broken" and "Wild World." As a folk singer, the British songwriter became the mouthpiece of a disillusioned hippie generation. But his life was also a journey, eventually converting to Islam after a near-death experience whilst swimming. 📺 Watch the full doc here: https://www.arte.tv/en/videos/098136-000-A/cat-stevens/ | Arte