Mary’s English teacher told her to pay more attention ___ her pronunciation. So she made a ________to practice it every day. [ ]

I often go to work ________. [ ]

When was the 29th Olympic Games held? —________ 8:00 of August 8th, 2008, Beijing. [ ]

He turned ______ the radio because his father was asleep. [ ]

If __________ bicycle is broken, _________ can use __________.