试题 试卷
题型:单选题 题类:模拟题 难易度:容易
——Oh, I________ for a friend from England at the airport.
{#blank#}1{#/blank#}when school was over yesterday afternoon.
—Well, I ______along the river at that time.
— I'm not sure. Maybe when I _______ my dog in the park.
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