C. letting you know not
D. letting not you know (B)
分析:动名词的否定式是在动名词前加not.
练习:
1.______ is a good form of exercise for both young and old.
A. the work B. walking C. to walking D. walk
2. How about the two of us ____a walk down the garden?
A. to take B. take C. taking D. to be taking
3. –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
4. -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
5. –what do you think made Mary so upset?
-___her new bicycle.
A. as she lost B. lost C. losing D. because of losing
1-5 BCBDC
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