Put IN, AT or ON in the blanks :
It gets very cold ___ winter.
Betty doesn't have a job ___ the moment.
The telephone and the doorbell rang ___ the same time.
He flew from Japan . He's probably ___ Perth now.
Would you like to go out to dinner ___ Friday night?
She was tired. She's ___ bed now.
Goodbye! I'll see you ___ the morning.
Were you ___ Tom's party last night?
I'll see you ___ two weeks time.
She was born ___ 1961.
The doctor will see you ___ 10:00.
___ the age of ten I wanted to be a firefighter.
My wife gave me a wonderful present ___ my birthday.
The coffee is ___ the shelf.
My pen is ___ my pencil case.
He's gone to work. He's probably ___ work now.
He lives ___ Australia .
___ my opinion you should buy the blue shirt.
___ second thought, the green shirt is nicer.
I'll see you ___ Monday.
I'll be taking my holiday ___ Christmas this year.
Buy some bread and milk ___ your way home.