Question

cum se foloseste cuvintele this that these those

Answer 1

This boy is my brother - adjectiv demonstrativ de apropiere singular
My book is this  - pronume demonstrativ de apropiere singular

These books are on the table - adjectiv demonstrativ de apropiere plural
My pens are these - pronume demonstrativ de apropiere plural

That blouse is red - adjectiv demonstrativ de departare singular
My blouse is that - pronume demonstrativ de departare singular

Those houses are faraway - adjectiv demonstrativ de departare plural
My books are those - pronume demonstrativ de departare plural

Adjectivul demonstrativ insoteste intotdeauna un substantiv.
Pronumele demonstrativ tine locul unui substantiv.