demonstrative pronouns

1. This

1.1. Singular

1.2. This

1.2.1. This is Jame's new mp3 player.

2. These

2.1. Plural

2.2. These

2.2.1. These are mobile phones.

3. That

3.1. Singular

3.2. That

3.2.1. That is Alan's house.

4. Those

4.1. Plural

4.2. Those

4.2.1. Those are watches.