14-15冀教九年级Lesson31练习Ⅰ. 根据句意及汉语提示填写单词。 1. She has been (参加) in many after-class activities since last year. 2. You'd better read the (剧本) carefully, or you'll make some mistakes. 3. - Which (戏服) fits you well? - The blue one. 4. We shouldn't make friends with others according to their family (背景). 5. Don't worry, Mr. Wang. We can finish the (任务) on time.Ⅱ. 根据句意,用所给单词或短语的..