Scientists say it will be five or six years _____ it is possible to test this medicine on human patients.
The operation is _____ success and the patient is now out of _____ danger.
Since tasting the excitement of _____ big city life, she never wants to live in _____ country again.
——Your book, Tommy? ——No, Mom, it’s my friend’s. ——Remember to return it to ____ name is on it.
I’d like to live somewhere ____ the sun shines all year long.
He is only too ready to help others, seldom, ____, refusing them when they turn to him.