Work in pairs. Describe the photo. Say what might / must / can’t have happened

In the photo shows that there is a smartphone on the chair on the street / in the park. Maybe someone left it there while they went for a walk or maybe they accidentally dropped it. It's hard to say for sure.

It is possible that someone might have picked it up and taken it with them, especially if the phone was left unattended for a while. Alternatively, someone might have found the phone and brought it to a nearby lost and found or police station.

It must have been a busy area with many people passing by, otherwise the phone may have been noticed and retrieved by its owner already. It is also possible that the owner of the phone might come back to the spot to look for it and retrieve it.

It can't have been too long since the phone was left on the chair, otherwise someone would have likely already taken it or turned it in to authorities.