silly [ˈsɪlɪ] ( compar sillier, superl silliest ) adjective 1. [foolish] dumm 2. [comical] komisch 3. [childish, ridiculous] don't be so silly! sei nicht so albern!
Complétez la séquence avec la proposition qui convient. She's been practising … 10 a.m. since for during