1. Her mother gave her a blue dress. (What?)
→ What did her mother give her?
2. I went to Nha Trang last summer vacation. (When?)
→ When did you go to Nha Trang?
3. Mrs.Robinson put the poster on the wall. (Where?)
→ Where did Mrs.Robinson put the poster?
4. The dress looked very nice. (How?)
→ How did the dress look?