Demonstrative Pronouns
 
This or that ?
 
 

Beginner
CEFR levels A1 (Breakthrough) and A2 (Waystage)

Demonstrative pronouns are used to refer to objects or people. There are only four of them. When choosing between them, you consider the correct number (singular or plural) and whether the object or person is near, or far away. 

                           near                      far

singular             this                       that

plural                 these                    those

 
This is a perfect day.                       That is my brother
This is my uncle.                             That's my book, I believe.

These are my sisters.                      Those are very cheap.
These are really good!                     Those are the best ones I have ever tasted.


These letters are yours, and those are mine.
Was this your idea? Yes, it was.
Who told you all that?

Intermediate
CEFR levels B1 (Threshold) and B2 (Vantage)

 
In informal English this and that can be used in the meaning of ‘so’:
                        He has never come home this late.
                        If your friend is that strong, why couldn’t he lift the tree trunk?