Scuola di Scienze Umanistiche

 Demonstratives.

a. This, that, these, those are called demonstratives. They are adjectives when they accompany a noun:

e.g.  These shoes are nice.         Adjective (these) + noun (shoes)

They are pronouns when they replace a noun:

e.g.  These shoes are nice. Those are horrible. (those = those shoes)

They are equivalent to the Italian questo, questa, quello/a, quelli/e. Look at the scheme:

b. Now do these exercises:

http://www.englisch-hilfen.de/en/exercises/various/this_that.htm

https://english.lingolia.com/en/grammar/pronouns-determiners/demonstratives/exercises/articles/demonstrative-pronouns-mixed-exercise-1946