Present simple: Affirmative (Agendaweb)
Present simple: Negative (Agendaweb)
Present simple: Questions (Agendaweb)
Present simple: Mixed forms (Agendaweb)
Different activities (Agendaweb_ pdf)
Quiz with different verbs and "to be" (Englishclub)
With recordings: Uses, examples, songs, activities (Curso-Inglés)
Theory and activities of different levels (British Council)
Activities of different levels (Ego4u)
Theory and activies with different verbs and to be (Perfect English Grammar)
