April 1st, is April Fool’s Day in the United States. It is not a real (36) like the Fourth of July or (37) Day. It is not observed by the schools or the (38) . It is just a day when people traditionally play tricks on each other.
History (39) say people have been celebrating April Fool’s Day for a long time. The (40) began so long ago, it is difficult to know how it got started. Some people believe the (41) came from the (42) Romans more than 2,000 years ago.
Other history experts say the day for fooling began in France in 1564, when King Charles IV changed the yearly (43) He moved New Year’s Day from April 1st to January 1st.
(44) . Others knew but refused to accept it. For whatever reason, some people continued to celebrate New Year’s Day on April 1st. Other people called them April Fools. And they played jokes on them.
(45) . And Americans today still play tricks on each other on April Fool’s Day. (46) . They may tell their friends that school has been canceled. Or they ring the doorbells on homes, run away, and then yell "April Fool" as the homeowner answers the door.
【参考答案】
Children put signs on the backs of their friends that read "......