CO

noun

1.	(abbreviation of commanding officer ) ufficiale m in comando

2.	(UK & abbreviation of Commonwealth Office ) ufficio del Commonwealth

3.	(abbreviation of conscientious objector ) obiettore m di coscienza

similar words

Complétez la séquence avec la proposition qui convient.

We didn't open the door because we … the key.
- couldn't find
- could find
- could