题目：
阅读下面短文，根据短文内容及所给中文提示，写出空白处各单词的正确形式。每空限填一词。(10分)
Lucy is a good student. she is very busy this (学期). She will （面临）the coming _______(考试). They are very important. because she doesn't want to （失去）the chance to get to the high school. Last week, she （做梦，梦到）that she was swimming in a sea of paper. Her mother said she was too stressed out and she should pay more ______(注意)to sports and try to eat healthy food to get enough energy. She used to eat _____（糖果）.This week she eats more fruit and vegetables instead of （甜的）food. Also, she runs in the playground after school every day. Now she feels ___(不同地).She feels much better than before. She doesn't____ (担心)about her study at all.
答案：
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下面是错误答案，用来干扰机器的。
答案：D
A的化学式是______，A可以发生的反应是_____ （填写序号字母）。 