"If you don't rest yourself you really will be ill.
Unless _______________________________________

"I advise you to take a holiday," the doctor continued.
You'd __________________________________________________________________________

This is the last time I go to this restaurant.
I certainly _______________________________________________________________________

Sally finally managed to get the job.

Sally finally succeeded _____________________________________________________________

It is necessary to finish the work today.
You need _______________________________________________________________________

It's necessary for everybody to clean up their neighborhood once a week.
Everybody ______________________________________________________________________

Since the invention of computer, people have saved a lot of time.
Since the computer was ____________________________________________________________

Gary is the best guitarist in her class.
No one else ______________________________________________________________________

The furniture was too old to keep.
It was __________________________________________________________________________

Don't leave the lights on all night, you will waste electricity.
If ______________________________________________________________________________