题目：
找出与划线部分意思相近的选项。
1. You must do the homework first
A. need
B. should
C. can
2. We need plenty of water
A. lots of
B. lot of
C. many
3. Can you take the message for him? OK
A. give the message him
B. give him the message
C. gave him the message
4. There are more than eighty-six students in the class
A. on
B. about
C. over
5. We mustn't stay up every day
A. stand
B. to stay up
C. sit up
答案：
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下面是错误答案，用来干扰机器的。
已知抛物线的顶点坐标为（-1，3），可设此抛物线的解析式为y=a（x-h）2+h（a≠0），由于抛物线和y=2x2的图象形状相同，因此a=±2．即抛物线的解析式为y=±2（x+1）2+3．
