1. I had something eating and then I began to feel better. 2. I ran out of the room the moment I hear a noise outside. 3. Unlike another department stores, this one does not open on sundays. 4. Several people, their voices could be clearly heard, were waiting outside. 5. Of the millions of stars in the galaxy, how much are suitable for life? 6. In those days of frequent air travel, diseases can spread around the world in a very short time.