1 . 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
The Lantern Festival, falling in the first Chinese lunar month, is an important and traditional festival 1 (celebrate) by people nationwide. It is the first time that people 2 (see) the full moon in the lunar year. In ancient China, night is called Xiao and the first lunar month is called Yuan month, so this festival is also called the Yuanxiao Festival in China. It marks the end of the celebration of the Spring Festival and is also the first major festival for people 3 (observe) after Chinese New Year.
Like the Spring Festival, on the Lantern Festival, all the family members go home 4 a reunion. In the evening, people usually watch beautiful lanterns, guess interesting and 5 (challenge) lantern riddles and perform wonderful dragon dances. In 6 (add), it is a custom for people to eat yuanxiao, a kind of sweet dumpling, 7 is round balls made of glutinous rice flour with 8 (vary) of fillings inside. In some places people sometimes put a coin into a certain one when making sweet dumplings. It is believed that the one who 9 (happen) to find and eat the sweet dumpling with a coin in 10 will have good luck for the whole year.