3. "Did you enjoy y__________ at the party yesterday?" Miss Li asked the kids.

4. The U.K. played an important role in history, t_______ it is only a small country.

5. We saw the sea b________ clearly from the window on the plane.

6. We should brush our teeth at least t_____ a day usually in the morning and at night before going to bed.

7. The Americans c _______ Mr. Barack Obama as the first black U.S. president.

8. After Typhoon Fitow（菲特）, the city of Hangzhou came through the w____ time since（自从）1951.

9. You can't e_______ to learn a foreign language well in a week.

10. In order to stay healthy, I'd like to try different outdoor a________ such as hiking or climbing.