Write the singular and plural forms of the given nouns and pictures.

Here are the completed singular and plural forms:

I. Write singular and plural form of the pictures.

1. Picture: Two mats Singular: mat Plural: mats
2. Picture: One cat Singular: cat Plural: cats
3. Picture: Three balls Singular: ball Plural: balls
4. Picture: One car Singular: car Plural: cars
5. Picture: Four stars Singular: star Plural: stars
6. Picture: Two pots Singular: pot Plural: pots
7. Picture: One pen Singular: pen Plural: pens

II. Write Plural form of each noun.

1. flag: flags
2. hen: hens