We can save water __ the taps when we don't use it.A.by not turning offB.by turning offC.by not turn offD.by turn off

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Wecansavewater__thetapswhenwedon''tuseit.A.bynotturningoffB.byturningoffC.bynotturnoffD.byturnoffWeca

We can save water __ the taps when we don't use it.A.by not turning offB.by turning offC.by not turn offD.by turn off
We can save water __ the taps when we don't use it.
A.by not turning off
B.by turning off
C.by not turn off
D.by turn off

We can save water __ the taps when we don't use it.A.by not turning offB.by turning offC.by not turn offD.by turn off
B by doing sth 通过……方法 不用的时候关紧水龙头可以节约水