初中英语特殊疑问句完成句子

We will travel to the Great Wall after the exam．（对划线部分提问）

　　you travel after the exam？

Li Hua usually goes to the library after school．（对划线部分提问）

　　 Li Hua usually do after school？

They didn't arrive on time because they got up late．（对划线部分提问）     

　　they arrive on time？

Dave was making a model plane in the classroom at that time．（对划线部分提问）

　　 Dave making a model plane at that time？

Lee has helped the local people sell their products __________________．（对划线部分提问）

　　　　has Lee helped the local people sell their products？