Wastewater is treated and turned into drinking water. This is done to ensure there is no shortage of fresh water.

Câu hỏi :

Wastewater is treated and turned into drinking water. This is done to ensure there is no shortage of fresh water.

A. For there is shortage of fresh water, wastewater is treated and turned into drinking water.

B. Wastewater is treated and turned into drinking water because there is shortage of fresh water.

C. Wastewater is treated and turned into drinking water though there is no shortage of fresh water.

D. To ensure there is no shortage of fresh water, wastewater is treated and turned into drinking water.

* Đáp án

D

* Hướng dẫn giải

Đáp án D

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