Ответ:
1. Has Molly used a lot of books?
2. Has Molly switched off the computer?
3. Has Molly tidied her bedroom?
4. Has Molly finished her homework?
5. Has Molly made her bed?
6. Has Molly eaten the apple?
7. Has Molly closed the curtains?
8. Has Molly put her books away?
Построение вопросительного предложения в Present Perfect:
Have/Has + I, you, we, they/He, she, it + 
/Past Participle ... ?