Over the years, people have learned from ants that teamwork and perseverance are indeed two key ______ to success.
Alice is a little ______ than her twin sister.
His boring speech made most of us _______ asleep.
Will he come back to school tomorrow? I hope _____.
The students encouraged _____ to go on.
-- Who broke the glass? -- I suppose _____ must be one of the children.