---Look! How long ______ like this?
---Three weeks! It’s usual here that rain ______ without stopping these days of the year.A.has it rained; poursB.has it been raining; poursC.is it raining; is pouringD.does it rain; pours
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B解析问某种状态持续多长时间，应用现在完成进行时，而第二个空是指一般状态，故用一般现在时，选B。