【单选题】
13. The supervisor appreciates ______ so hard in the office.
【单选题】
10. ______, he was unable to make much progress.
②
Though hard as he tried
【单选题】
6. She felt herself ______ by the wind.
【单选题】
9.She does not_____ that she owes the money, but she just wouldn’t like to return it.
【单选题】
9. By 2008, Beijing ______ its total discharge of pollutants.
【单选题】
5. The children were seen _______ musical instruments across the street.
【单选题】
8. ______, he was honest.
【单选题】
12. I’m very sorry to have _______ you with so many questions on such an occasion.
【单选题】
7. It is so quiet that you can hear a pin ______.
【单选题】
4. The instructor watched the student ____ the test.