Fill in the blanks with suitable prepositions.

1. They threw themselves heart and soul         the project.

2. Salary will be commensurate         experience.

3. She's an authority         criminal law.

4. What you wear speaks volumes         you.

5. They asked her to be merciful         the prisoners.

6. The letter was expressive         his sincere regret.

7. Wealth is not necessarily synonymous         with happiness.

Answers

1. into  2. with 3. on 4. about 5. to 6. of 7. with