Matching singular and plural sentences Read each sentence and look for (= procura) its matching singular or plural form. It is based on "this, that, these, those" and "a/an/-". Tools See a list of terms used in these activities. Flashcards (Java / non-Java) Concentration Activities created by: Teresa Almeida d'Eça This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.