Out of______ for the wounded dog, Alice decided to take the abandoned animal home for treatment.

I know that our geologists think highly of his researches in the ______

Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____  without scientific basis.

The short-answer test is a kind of____between the composition and  selection types.

A study shows that walking fast in your old age is a ______ that you will live a long life.