They go to shanghai library to read books this sunday.go to shang_英语解答

They go to shanghai library to read books this sunday.go to shanghai library to read books,这句句子换线,

人气：111 ℃　时间：2019-12-01 14:06:10

解答

是对话线部分提问吗,如果是答案如下：
对他们要去做什么提问用what
What will they do this sunday?