9. a) Write questions for the missing subjects or objects. 1. (Subject) discovered America? 2. (Object) did Aristotle teach ? 3. (Object) did Chyngyz Aitmatov write? 4. (Subject) built the Taj Mahal? 5. (Object) planet did Superman come from? 6. In 'Shrek', (subject) voices Donkey? 7. (Subject) wrote the 'Harry Potter' series?