题目内容

短文改错。

                                                                       
Rose, a physics teacher, once explained for     her1.______
class about noise. She decided to test it after her2.______
explanation. "Now, I have a brother   in Los Angeles,"3.______
she said, "If I am phoning him, and you were4.______
76 feet away
listened to me from across the street, which of you   5.______
would hear me early, my brother or you, and for 6.______
what reason?"
A brightest student at once answered, "My   brother, because 7.______
electricity travel faster than sound waves." But then a girl8.______
said, "I didn't agree. Your brother would     hear you first9.______
because it's 11 o'clock here, it's only    8 in Los Angeles."10.______
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