_______ many times, but he still couldn’t understand it.
An American girl survived the plane crash that killed the rest of the passengers _____.
When you visit a museum you must ask for _____ before taking photographs inside it.
If the computer should_____ within the first three years, we would repair it at our expense.
Only with the greatest of luck _____to escape from the rising flood waters.
Why don’t you bring _____to his attention that you are too busy to do it?