–______ keep water running when you are brushing your teeth or washing your hands, Jack.
– OK. I know we must save every drop(滴) of water.
A. Why not B. Please C. Don’t
–______ keep water running when you are brushing your teeth or washing your hands, Jack.
– OK. I know we must save every drop(滴) of water.
A. Why not B. Please C. Don’t
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