♦ Type into each gap the correct Imperfect Tense form of the verb given in the [square] brackets. Buttons for Umlauts are at the bottom of the page! ♦ Then click on »Prüfen«. If you get a verb wrong it'll be blanked out so you can try it again.
➽ LEO online dictionary is here. / An Imperfect Tense explanation page is here.