1. The invention of the telephone ______ communication significantly.

2. She ______ her homework before she went to the party.

3. If you ______ hard, you will achieve your goals.

4. The committee ______ to make a decision by the end of the week.

5. He ______ to the gym every day to stay fit.

6. The book was so interesting that I ______ it in one sitting.

7. She ______ already left by the time I arrived.

8. The company ______ a new CEO last month.

9. He ______ to New York three times this year.

10. The results of the experiment ______ surprising.