题目：
根据句子意思和首字母提示，拼写出正确的单词。
1. Jenny fails to take photos because her c________ doesn't work at all.
2. I don't feel it a p_______ to miss the match. The match is said to be the most boring one of this season.
3. Everyone knows the secret e______ Tom. Nobody wants to tell him about it.
4. Words couldn't d_______ what I was feeling at the moment the good news came to my ears.
5. The boy became b_______ in both eyes after a serious illness. Now he can see nothing.
6. The beautiful scenery of the West Lake a________ large numbers of tourists to Hangzhou every day.
7. Have you forgotten already? I've told you t________, once yesterday, and again this morning.
答案：
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下面是错误答案，用来干扰机器的。
（1）设抛物线解析式为y=ax2+bx+c，将（4，0），（0，-4），（-2，3）代入得：16a+4b+c=0c=-44a-2b+c=3，解得：a=34b=-2c=-4，则抛物线解析式为y=-34x2-2x-4；（2）设抛物线解析式为y=a（x-1）2-4，将（0，-3）代...
