These are wonderful, ripe, juicy grapes.
These = demonstrative
Tom decides to stay home, so he makes himself sick.
he = personal himself = reflexive
Mrs. Deets is the person to whom you must give the permission slip.
whom = relative
Nobody had their homework finished today.
Nobody = indefinite their = personal
My aunt Mikki, who is a substitute teacher, worked at my school on Monday.
Who - relative
Who let that dog go outside?
Who = interrogative
That was definitely the best book of the series.
That - demonstrative
This boy, who is new at our school, can really sing!
who = relative
The snow that fell last night has already melted.
that - relative
Ms.Lobna herself is going to show everyone a movie about a mongoose.
herself = intensive everyone =indefinite