sly [slaɪ] ( compar slyer or slier, superl slyest or sliest ) adjective 1. [look, smile] furtivo ( f furtiva) 2. [person] astuto ( f astuta), ladino ( f ladina) sly [slaɪ] noun on the sly a escondidas
Complétez la séquence avec la proposition qui convient. It's my birthday soon, … a party! let's we have let's have let's not