This Adjective straight=away points out the person or thing concerned
The four words this, that, these and those are called demonstratives. When they are followed by some other word (especially a noun) in a noun phrase, they are demonstrative determiners. We use this and these to point to people or things near us. You use that and those to point to people or things that are farther from us.
| Singular | Plural |
|---|---|
| This | These |
| That | Those |
They are used to tell which thing or person you mean.
Examples Of Demonstrative Adjective
| I am ready to buy this house |
| I want to look at that house |
| These are the times that try men’s souls |
| That boy is intelligent |
| Those cows are white |
Non-defining relative clause
Non-defining relative clauses are placed after nouns which are definite already.
The adjective clause which does not define the noun before it but gives additional information about the noun is called the non-defining relative clause.