问答题

________________(举起手来) if you know the answer to the question.

【参考答案】

Hold up your hand
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单项选择题
Noise pollution is annoying, but does not result in any physical problems for people living in noisy areas.
A．Y
B．N
C．NG
填空题
A．define and describeB．definition and descriptionC．defining and describingD．have defined and described
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