--What you for your vacation? --I plan to visit my grandparents.
He wrote books _______ they could learn about how he treated the sick.
I think he is one of ___________ players in the world.
You shouldn’t drive for more than three hours without ______ a rest.
There were few doctors, _____ he had to work very hard _____ his own.
Many people were dying ________ they didn’t get to hospital quickly enough.