threshold

[ˈθreʃhəʊld]
noun

1.	[doorway] Türschwelle die

2.	[level] Schwelle die

3.	(fig) [verge] to be on the threshold of sthg an der Schwelle zu etw stehen

similar words

threshold

French

Spanish

Italian

Complétez la séquence avec la proposition qui convient.

These exercises ….
- are very difficult
- is difficulty
- are exercises difficult