Question

【题目】Look! A dog is running ________ the boy.

A. after B. before C. at D. for

Answer 1

【答案】A

【解析】句意：看！一只狗在追那个男孩。考查动词短语和介词词义辨析。A. after在…以后； B. before 在…以前；at在；D. for为了，给，对于。Run after追赶，追逐，跟在后面跑。结合句意和语境可知选A。