10. There was a sudden gust of wind and away went his hat.

9. Many a time has Mike helped me with my English.

8. No sooner had she begun to speak than I sensed that something was wrong.

7. Not only did Mary complain about the food, but also refused to pay for it.

6. Not a word did he speak at the meeting.

5. Only in this way can we succeed.

4. At no time has it been more difficult for us to pass the examination.