汽车上一般都设有“安全带指示灯”提醒驾驶员系好安全带．当安全带系好时，控制开关断开，指示灯不亮；安全带未系好时，控制开关闭合，指示灯发光，并发出提示音．则下面符合要求的电路图是（　　）

—So you gave Mary your dictionary?

— ______.She said she'd return it to me when she could afford her own.

二次函数y=2x²﹣8x+m满足以下条件：当﹣2＜x＜﹣1时，它的图象位于x轴的下方；当6＜x＜7时，它的图象位于x轴的上方，则m的值为（　　）

增加：在缺词处加一个漏字符号（︿），并在其下面写出该加的词。

删除：把多余的的词用斜线（＼）划掉。

修改：在错的词下面划一横线，并在该词下面写出修改后的词。

注意：1)每处错误及其修改均仅限一词。

2)只允许修改10处，多者（从第11处起）不计分。

    Today we had a chemistry test. I found the test difficulty, but I tried hardly to do it. Suddenly, my best friend Mary asking me to let her to copy my answers. After think for some time, I let her copy my answers. But after the test, all of us were called to the teacher’s office. The teacher was angry because we had same answers in the tests. We were warned not to cheat again so she would need to see our parents. I was very upset. I was just helping a friend. Why does she punish me?