--- Is this your sister’s key, John? --- No, it isn’t. ______ is in the bag.
I’m afraid I gave you a lot of trouble ________ my stay here.
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 .