This grammar quiz covers quite a big range of grammatical features on A1 level German, e.g. definite and indefinite articles, pronouns, modal verbs, sep. verbs, perfect tense, verbs with a vowel change, word order, prepositions, imperative et al. in German.
This is a quiz suitable for German teachers in English speaking countries. If German DaF-Teachers are interested in a German version of it, let me know and I will translate it and change some of the questions.