---Fifty dollars for such a T-shirt! You _______ be joking!---I’m serious.It’s made of silk.
The singing group will have two performances ______ October.
The supermarket is open ______ midnight.
She didn’t go to work ______ that morning. She slept ______ noon.
He was ill _____ a week, and _______ the week he ate almost nothing .
Days are longer ______ summer than ___________ winter.