seriously

[ˈsɪərɪəslɪ]
adverb

1.	[earnestly] ernsthaft to take sb/sthg seriously jn/etw ernst nehmen

2.	[very badly - ill] schwer [ - lacking] sehr

similar words

seriously

French

Spanish

Italian

Complétez la séquence avec la proposition qui convient.

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