Ii. rewrite the sentences, using plural forms: 1.this is my pen and that is your pensil. 2. this is his desk and that is hers. 3. this is my book and that is theirs. 4. is this my book? 5. is that house yours? that house is mine.

Here are the sentences rewritten in the plural form. Note that when changing the subject to plural, the verbs and pronouns must also be adjusted to maintain grammatical agreement. Plural Form Conversions

1. These are my pens and those are your pencils.
   • Changes: "This is" $$ "These are"; "pen" $$ "pens"; "that is" $$ "those are"; "pencil" $$ "pencils".
2. These are their desks and those are theirs.
   • Changes: "This is" $$ "These are"; "his" (singular owner) $$ "their" (plural owners); "desk" $$ "desks"; "that is" $$ "those are".
3. These are our books and those are theirs.
   • Changes: "This is" $$ "These are"; "my" $$ "our"; "book" $$ "books"; "that is" $$ "those are".
4. Are these our books?
   • Changes: "Is this" $$ "Are these"; "my" $$ "our"; "book" $$ "books".
5. Are those houses yours? Those houses are ours.
   • Changes: "Is that" $$ "Are those"; "house" $$ "houses"; "that house is mine" $$ "those houses are ours".

Summary Table of Changes

Would you like me to provide more examples of possessive pronoun transformations?