用下列单词的适当形式完成句子。 habit importance electric involve recent tradition celebrate measure cheer 1 The good news got from the audience. 2 These factories will take every possible to reduce pollution. (减少污染) 3 Waterfalls (瀑布) can be used to produce power. 4 Can you come to the party to Jim’s graduation? 5 It’s a(n) to sing “ jingle bells ” at Christmas. 6 These classes help members learn how to change their eating . 7 In some way, he several of his friends in the trouble. 8 In the end, he realized the of foreign languages.