Household pets (infecting) with fleas should (be bathed) weekly (with) a (specially prepared) flee soap.

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问题 Household pets (infecting) with fleas should (be bathed) weekly (with) a (specially prepared) flee soap.

选项 A、infection
B、be bathed
C、with
D、specially prepared

答案A改为infected

解析 家庭宠物被感染跳蚤,用过去分词表被动。
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