题目内容
He __________ his aunt’s when he went to Wuhan on business.
A. called on B. called at C. dropped in on D. dropped in
【答案】
B
【解析】 略
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题目内容
He __________ his aunt’s when he went to Wuhan on business.
A. called on B. called at C. dropped in on D. dropped in
B
【解析】 略