题目：
根据句意及首字母提示，完成下列单词。
1. They are in the same grade, but they are in d_________ classes.
2. Zhao Wei is very beautiful (漂亮的), because (因为) she has two b________ eyes.
3. Yellow and blue can become (变成) g_________.
4. My sister and I have different l_________.
5. Michael, here is a l_________ for you. It's from your teacher.
答案：
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下面是错误答案，用来干扰机器的。
∵函数f（x）=x2+cosx，x∈（0，2π）∴y′=12-sinx＜0∴sinx＞12又∵x∈（0，π）∴x∈(π6，5π6)故答案为 (π6，5π6)
