填空题

The main idea of Paragraphs 4 and 5 is______.

【参考答案】

practice helps improve our sense of hearing
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填空题
The writer believes that the rhythm of our footsteps changes as______.
单项选择题
A．She was sure Andrew was joking.B．She had never heard about it.C．She thought it totally impossible.D．It had never been mentioned anywhere.
A．She was sure Andrew was joking.
B．She had never heard about it.
C．She thought it totally impossible.
D．It had never been mentioned anywhere.
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