It was snowing hard the whole night，so people________the streets of snow and ice now．A.are cleaningB.are clearingC.are cleanedD.are cleared
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B解析分析：clean作动词时解释为“把……弄干净”，clear作动词时解释为“把……清除掉”。clean the table(把桌子擦干净)，clear the table(收拾桌子)(指把桌子上的东西拿掉或弄整齐，如吃饭后把餐桌上的碗、碟等拿掉)；clean the street(把街道扫干净，打扫街道)，clear the street(清扫掉街道上不该有的、妨碍交通的东西)，clear the snow from the street／clear the street of snow(清除街上的积雪)。CD两项是被动语态，不符合题意。(延伸)clean作形容词时意为“干净的”，clear作形容词时意为“清澈的”，如：clear water；“清楚的”，如：a clear voice；“晴朗的”“无云的”，如：a clear night．