15. ---You were brave enough to raise objections at the meeting. ---Well, now I regret ___________ that.

A. to do B. to be doing C. to have done D. having done

14. ---I must apologize for ___________ahead of time. ---That's all right.

A. letting you not know B. not letting you know

C. letting you know not D. letting not you know

13. How about two of us ___________ a walk down the garden?

A. to take B. take C. taking D. to be taking

12. "Can't you read?" Mary said ___________ to the notice.

A. angrily pointing B. and point angrily C. angrily pointed D. and angrily pointing

11. The secretary worked late into the night, ___________ a long speech for the president.

A. to prepare B. preparing C. prepared D. was preparing

10. There was terrible noise ___________ the sudden burst of light.

A. followed B. following C. to be followed D. being followed

9. The next morning she found the man ___________ in bed, dead.

A. lying B. lie C. lay D. laying

8. ___________ anything about the accident, he went to work as usual..

A. Not known B. Known not C. Knowing not D. Not knowing

7. This sentence needs ___________ .

A. a improvement B. improve C. improving D. improved

6. The girl ___________ under that tree is my sister.

A. sitting B. sits C. is sitting D. sat