1. She ____ a beautiful voice that mesmerizes the audience.

2. They ____ been waiting for over an hour; let's not make them wait any longer.

3. The new employee ____ already demonstrated great potential in the short time here.

4. We ____ to finish our work before the deadline.

5. Jack and Jill ____ climbed up the hill to fetch a pail of water.

6. My dog ____ a habit of barking at the mailman every morning.

7. The book ____ an intriguing plot twist that surprised everyone.

8. The keys to the car ____ gone missing. Have you seen them?

9. She ____ never been to Europe, but she dreams of visiting someday.

10. The committee ____ decided to postpone the meeting until next week.