1. Is your sister addicted to shopping?
2. We can't bargain for the prices of goods in supermarkets.
3. What did you do at 9 o'clock yesterday morning?
4. The residents of tall buildings were frightened when they felt a slight shaking.
5. When a natural disaster happens, we must listen to instructions from local authorities.
6. One disadvantage of shopping online is that you may not know exactly what you're getting.