Do you know which library_,the students'?A,did he go B,he went C,did he go to D,he wet to选,原因?

问题描述:

Do you know which library_,the students'?A,did he go B,he went C,did he go to D,he wet to选,原因?

选D
这里which引导的是一个宾语从句,故从句中要用陈述语序