Halloween is just around the corner. When I 31 ____ in the U.S., I always made sure I had lots of candy during Halloween. That's because on Halloween night all the neighborhood kids would put on scary 32 ____ and go trick-or-treating from house to house. They would knock on the door and 33 ____, "Trick or treat?" You would then have to put candy, 34 ____ chocolate, in their bags. After a night of trick-or-treating most kids would 35 ____ a bagful of different types of candies that would take weeks to eat. (第31題) 選出第31格正確答案：