Mar 11, 2010, 4:26 PM
The pronoun it is used to refer to uncountable nouns, but also, to singular nouns or words:
What colour is milk? It is white.
This/That/It is a pen.
The house is mine. It was built in 1980.
Please visit http://www.polseguera.com/...grammar/pronouns.htm and http://www.polseguera.org/...essive_reflexive.php for further information.
This and that are demostrative pronouns and determiners. This implies that something or someone is close to us, and that is used to indicate distance:
That man over there is my cousin.
-Hello, Peter! This is my uncle. His name is Tom
-Nice to meet you, Tom
-Nice to meet you, Peter
What is that? It is a rabbit.
This book (the book is near) is mine and that book (the book is not near) is yours.