A. great-grandma B. innocence C. inventor D. priest A. middle-aged B. I can't wait C. crown D. American A. ecosystem B. scientist C. dining D. prolonged A. take after B. invent C. base D. funny A. decoration B. writer C. carried D. red packet A. fluid B. backward C. through D. artist A. story B. gravity C. trick or treat D. Tian'anmen Square A. jewellery B. decorate C. be satisfied with D. poem A. university B. cycle C. lost and found box D. schoolyard A. sparrow B. opening C. French D. penny