Yesterday a reporter asked 10 students at Hilltop Schoollast weekend.A. what did they doB.

问题补充：

Yesterday a reporter asked 10 students at Hilltop Schoollast weekend.

A. what did they doB. what were they doing C. what they did

答案：

解析：这里考查的是宾语从句的语序。在宾语从句中，从句应用陈述语序。故排除A和B。