---_______do you have an art festival in your school? ---Once a year.
Do you enjoy________ on the weekend?
He has enough time ______this work.
--Could you tell me_______? --At nine o’clock, in ten minutes.
--TV says there will be a storm tomorrow. --_______. I planned to go climbing with my classmates.
--Driving less, walking more is good for our health. --So I’d rather_____ an hour’s walk to work than consider ______ a car.