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阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项。

Did you know that people can only use less than 1% of all the water on the earth? And we can drink it, wash with it, or use it to water plants. So it is important that we use our water wisely and don't waste it.

There are many simple things we can do to save water.

Turn off the tap(水龙头). Just by turning off the tap while you brush your teeth in the morning and before bedtime, you can save up to 8 gallons of water! The same is true when you wash dishes. Turn off the tap! Put the plates in the dishwasher(洗碗机).

Take a shower instead of filling up a bathtub(浴缸). It uses much less water. To save even more water, keep your shower under five minutes long--try timing yourself with a clock next time!

Fix the leak(裂缝). If your toilet has a leak, you could be wasting about 200 gallons of water every day. That would be like flushing(冲洗) your toilet more than 50 times for no reason!

Water your yard in a clever way. The best time to water your yard is in the early morning or late evening when it's cool outside. Also, when you're helping your parents water the yard, make sure not to water the plants too much--remember that a little sprinkle goes a long way!

Who needs a hose? Washing your bike or car with a bucket and sponge instead of a hose saves a lot of water. A hose can waste 6 gallons per minute if you leave it running, but using a bucket and sponge only uses a few gallons!

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