Can you tell me what___next Sunday?(A)will they do(B)they would do(C)would they do(D)they will do

题目

Can you tell me what___next Sunday?(A)will they do(B)they would do(C)would they do(D)they will do
能跟我解释句型;及为什么吗?

答案

答案：D
宾语从句用陈述语序.