They invented the wheel thousands of years ago.
⇒ _the wheel was invented thousands of years ago__________________________________________________________.

Can tourists buy many kinds of goods in Ben Thanh Market?
⇒ can many kinds of goods be bought in ben thanh market ___________________________________________________________?

Did the thieves steal everything in the box yesterday?
⇒ was everything in the box stolen by the thieves yesterday  ___________________________________________________________.

People choose Khue Van Pavilion as the symbol of Hanoi.
⇒Khue van pavilion is chosen as the symbol of hanoi ___________________________________________________________.
Visitors can see many beautiful Cham Towers in Binh Dinh Province.
⇒ ____many beautiful cham towers can be seen in binh dinh province by visitors
_______________________________________________________.

Does his father drink coffee every morning?
⇒ is coffee drunk every morning by his father ___________________________________________________________?

Famous professors and lecturers don’t teach the students in that university.
the students are taught by Famous professors and lecturers in that university