Write sentences using prepositions, numerical adjectives, hyphens, and apostrophes, demonstrating understanding of these grammar concepts.

Here are the answers for Classroom activity 3:

1. Three sentences using prepositions:

   • Preposition of place: The book is on the table.
   • Preposition of time: We will meet at noon.
   • Preposition of movement: She walked into the room.

2. Two numerical adjectives:

   • Three apples
   • The first prize

3. Sentence using a hyphen:

   • He is a well-known author.

4. Apostrophe examples:

   • Contraction: It's a beautiful day.
   • Possession: The dog's bone.