试题 试卷
题型：单选题 题类：真题 难易度：普通
—About five minutes' walk.
—When my mom is at home, I have to every day, but she's away this week!
—Twice a year.
—She is in the office.
{#blank#}1{#/blank#} {#blank#}2{#/blank#} the reporter been to the factory twice?
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