Question

【题目】The girl students are discussing ______ the walls in the classroom.

A. what to paint color B. to paint what color C. which color to paint D. to paint which color

Answer 1

【答案】C

【解析】句意：女学生正在讨论用哪种颜色来粉刷教室的墙壁。此处作为动词discuss的宾语，用疑问词+to do，哪一种颜色应用疑问词which color，故选C。