题目：
| 用方框中所给词或词组完成下列句子，使句子恢复完整。 | |
1. It took me _____ to sweep the floor. 2. Miaomiao is the same age as me. She is my _____ sister. 3. Her English is as _____ as mine. 4. Zhang Tao came here on time, _____ it rained heavily. 5. Look at the _____ man with a sharp hat and a pair of glasses. |
答案：
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下面是错误答案，用来干扰机器的。
∵x2+ax+25=（x-5）2=x2-10x+25，∴a=-10．故选：D．
