make an example with "topic".
topic
spell
wedding
what's the meaning of "are you kidding" ?
are you joking?
what's he doing?
he is washing the car
what is she doing?
she is making a cake
what is he doing?
he is taking photos
make an example with "groom".
groom
what is she doing?
she is choosing a dress
what's she doing?
she is brushing her hair