This pencil's ... the book.

This pencil's on the book. - Этот карандаш на книге.

This pencil's at the book. - Этот карандаш рядом с книгой.

This pencil's near the book. - Этот карандаш рядом с книгой.

This pencil's under the book. - Этот карандаш под книгой.

This pencil's in the book. - Этот карандаш в книге.

Is this pencil on the book?

Where is the pencil?

What is on the book?

Is this pencil near the book or under the table?

Is this pencil or that pencil near the book?

This pencil is on the book, is not it?