People have lots of problems living in the central Australian desert, ____ the lack of water is the most serious one.
What worried the child most was _____________ to visit his mother in the hospital.
Some people try to knock me down, only______ me more determined to do better.
He was annoyed for _________ outside while his wife was shopping with the key.
Her many talents were ___________all her friends.
The hospital _________ well, where many wounded ________every day.