Question

【题目】—What did you do when you were in London?

—I Buckingham Palace.

A. visitedB. am visitingC. visitD. will visit

Answer 1

【答案】A

【解析】

句意：——当你在伦敦时，你做什么？——我参观了白金汉宫。根据What did you do when you were in London?可知此处用一般过去时，故为visited。故选A。