The lesson is easy for the students. You see there are _________ new words in it.
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.