题目

It’s hard to avoid looking like a fool on April Fool’s Day. On April 1 each year, people play tricks on each other. These tricks are usually ______ rather than mean. Classmates sometimes tie each other’s shoelaces (鞋带) to their chairs. Teachers might hand out an impossibly difficult surprise test that scares students before they realize it’s only a ______. Newspapers announce fake contests (such as “Win an elephant！”) and report on fake stories (like “UFO” lands in New York City)．Forget gifts, songs and special foods — those are for the other holidays of the year. On 计算：（1）（2）．