My aunt is a writer. She more than ten books since 1980.
---Who can tell me_______? ---Every 15 minutes.
The newly-designed car is on show now. I wonder .
---What did the policeman say to you just now?--- He asked _______ when the accident happened.
---Can you describe_______?---Of course.
—Could you tell me ______?—Usually one hour and a half.