1. EnglishExercises.org. So, and, but, becauses
2. EnglishExercises.org. Addition and contrast (Moreover, nevertheless, furthermore, however, in addition, as well as, despite, and, but, in spite of, even though, although ...)
3. AgendaWeb. Lots to choose
2. EnglishExercises.org. Addition and contrast (Moreover, nevertheless, furthermore, however, in addition, as well as, despite, and, but, in spite of, even though, although ...)
3. AgendaWeb. Lots to choose