问答题

水污染的主要原因。 2. 水污染的危害性。 3. 水污染的总是的解决办法。 What Can We Do About the Water Pollution

【参考答案】

What Can We Do About the Water Pollution Water pollut......

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argument→arguments。

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To whom or what does the pronoun they in underline , Para. 5 refer

A．The original building sites.
B．The townspeople.
C．The burned-down houses and shops.
D．The landlords.

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