The demonstratives this, that, these, those ,show where an object or person is in relation to the speaker.
This (singular) and these (plural) refer to an object or person near the speaker. That (singular) and those (plural) refer to an object or person further away.
It can be a physical or a psychological closeness or distance:
I heard this dog barking. I didn't hear these dogs barking.
- Near:
- Far:
On-line exercises:
From Adele's ESL Corner:
From English Exercises:
From Carmen Luisa:
From Englisch Interaktiv:
From EOLF:
From Language.com: