—Where is Mr. Zhao? —He _________ to Mount Fanjing. He’ll come back _______ a week.
Mike was ill yesterday, _______ he didn’t go to school.
September is the ____ month of a year.
The little girl was very happy ______ her new friend gave her a beautiful present.
It will be hard for us to get up in the morning if we _______ to bed too late.
-- Mum, ______ is my football? -- It's under your bed.