Fill in the blanks using the following expressions.
1. address
2. core
3. embedded
4. complexity
5. grounded

1. Concern for the environment is at the _____ of our policies.
2. He's very _____ even though he has so much money.
3. Only now did he understand the full _____ of the problem.
4. Your essay does not _____ the real issues.
5. These attitudes are deeply _____ in our society.

Answer key
1. core
2. grounded
3. complexity
4. address
5. embedded