阅读短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。
Miss Evans was
going to give a speech on Friday afternoon. But on Thursday night she was told
that she had to go to an important meeting the next day at the same time. "No
one can be in two places at the same time. What should I do?" She thought.
But soon, she had an idea.
At five to
three on Friday afternoon, Miss Evans went to the lecture room. There were
twenty students waiting for her. "I'm sorry," she said, "I won't
be able to give my speech today." The students looked surprised. Miss
Evans explained that she had an important meeting. "However," she
went on, "though I can't be with you myself, my voice can." Then she
put a small recorder on the desk," You see, I've recorded my speech and
you can listen to it without me." Miss Evans turned on the recorded and
left.
The meeting
ended a little early. Miss Evans decided to go back to her students. She stood
for a moment outside the room, listening to her own voice. Then she opened the
door. To her surprise, the room was empty. As she looked around, she saw a
number of small recorders "listening" to her speech!
"Well."
she thought, "If I can be in two places at the same time, why can't they?"
