The exercise was created 27.01.2014 by Irsta_EN. Anzahl Fragen: 15.
Normally, all words in an exercise is used when performing the test and playing the games. You can choose to include only a subset of the words. This setting affects both the regular test, the games, and the printable tests.
All None Speichern
https://spellic.com/ger/abfrage/ch8b-the-ozone-layer.3410838.html