阅读理解。 Children in America like Halloween(节) very much.In the evening on the 31st of October(十月) ,they put on special clothes.Sometimes(有时) they dress(打扮) like witches and ghosts.Sometimes they dress like kings and queens.They go to their neighbour's house and knock(敲) at the door.The neighbour(邻居) opens the door.The children say,'Trick or treat (招待)?' The neighbour gives them chocolate or some fruit(水果). Sometimes people don't give the children any food.Then the children play a trick on them.They put soap(肥皂) on their windows.Children like this special day.They like their bags of sweets(糖果). 阅读短文，根据在出现的先后顺序排列下列四幅图，并根据短文内容补全句子或回答问题。(答案写在答题纸上) 图片顺序：1. ______ 2. ______ 3. ______ 4.______ 5.Children can get sweets a nd fruit on Halloween from their ______ . 6.Many children put on ______ clothes on this special day. 7.What does “play a trick' mean(意思是) in Chinese?______