Is he/she happy? - I don't know.

Student A (Jhon)

Student B (Maribel)

Student C (Geiny)

Jhon → Maribel: (A speaking to B)

Is Geiny happy?

Maribel → Jhon: (B speaking to A)

I don't know.

Maribel → Geiny: (B speaking to C)

Are you happy?

Geiny → Maribel: (C speaking to B)

Yes, I am. (No, I'm not.)

Maribel → Jhon: (B speaking to A)

Yes, he/she is. (No, he/she isn't.)

Does he/she have a book? - I don't know.

Student A (Evonne)

Student B (Erling)

Student C (Carlos)

Evonne → Erling (A speaking to B)

Does Carlos have a book?

Erling → Evonne (B speaking to A)

I don't know.

Erling → Carlos (B speaking to C)

Do you have a book?

Carlos → Erling (C speaking to B)

Yes, I do. (No, I don't.)

Erling → Evonne (B speaking to A)

Yes, he/she does. (No, he/she doesn't.)