Thank you your postcard Shanghai.A. of, ofB. for, fromC. from, fromD. for ,for

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A. of, of
(答案→)B. for, from
C. from, from
D. for ,for
解析：thank you for sth/doing sth 表示因某事而感谢某人。Postcard from Shanghai表示来自上海的明信片。