The chickens will provide us _______ feathers, ______ we can make use for cleaning the table and benchesA.with; withB.with; of whichC.of; whichD.of; from which
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B解析考查短语及定语从句。提供给某人某物provide sb with sth,第二空为定语从句，从句中有短语make use of 利用。所以用of which ，根据题意选B。