【题目】She __________ an old friend of hers yesterday while she was shopping at the department store.
A. turned down B. dealt with
C. took after D. came across
在线课程【答案】D
【解析】 句意：昨天她在百货商店购物的时候碰到了一个老朋友。本题考查动词短语的辨析。come across偶遇，碰见；turn down拒绝；deal with处理，对付；take after像，相似。根据句意选D项。