There are twelve months in a year.
My friend has had three jobs in a year; he never sticks to anything for long.
However hard you may study, you can't master English in a year or so.
The building will be completed in a year.
Japanese high school students go to school 35 weeks a year.
Mike has been out of work for a year.
They guarantee this clock for a year.
They guarantee this clock can be used for a year.
We get together once a year.
I gave up smoking for a year.