1. During the cold war era, the US and the USSR were competing ________ each other for world domination.

2. Are you conscious ________ your responsibility in this matter?

3. We must guard ________ antisocial elements exploiting the students.

4. I was amazed ________ her brilliant performance.

5. She instantly jumped ________ the conclusion that I was against her plans.

6. He congratulated her ________ her new job.

7. We all look ________ him for help and guidance.

8. She deals ________ antique furniture.

9. I inquired ________ him whether he would come with us.

10. She often boasts ________ her aristocratic upbringing.