Question

【题目】Wow，here are so many beautiful skirts.I don't know ________ to buy.

A. which B. what C. why D. that

Answer 1

【答案】A

【解析】句意：哇, 这里有很多漂亮的裙子。我不知道该买哪个。A. which疑问代词，哪个、哪些；B. what疑问代词，什么；C. why疑问副词，为什么；D. that代词，那个。故选：A。