（）what to do, he went to the manager for help.
A: Not to know
B: Not knowing
C: Not having known
D: Having not known
A: Not to know
B: Not knowing
C: Not having known
D: Having not known
举一反三
- The manager denied ________ anything about it beforehand. A: knowing B: to know C: to be known D: having been known
- __________, he went to Mr. Green for help. A: Not to know what to do B: To not know what to do C: Not knowing what to do D: Knowing not what to do
- _what to do, I had to turn to my parents for help. A: Not know B: Not known C: Not to know D: Not knowing
- The principal denied ___ anything about the incident beforehand. A: knowing B: to know C: to be known D: having been known
- ________ by a crowd of people, I felt nervous, ______ what to say. A: Watching, didn't know B: Having watched, and not knew C: Having been watch, not known D: being watched, not knowing