Frank and ann come into darcy's room. frank asks darcy for her car keys. darcy looks in her pockets. she tells frank and ann to wait while she goes into the other room to look for the keys.
use the drop-down menus to set the scene
[enter frank and darcy] [enter frank and ann] [enter darcy and ann]
[darcy: ] [frank: ] [ann: ] darcy, do you have the keys?
darcy: [finding the keys] [searching her pockets] [handing keys to frank] i left them upstairs. wait here for a minute. [exit darcy.] [exit ann.] [exit frank.]

Setting of the scene include additional information about where and when the action takes place. They are added to the dialogue in the script and are written in brackets.

We could also say that it consists of all information and details, other than the dialogue itself.

Now, we only need to read the text carefully again.

1) Since Frank and Ann came into Darcy's room, we would write it as [ENTER FRANK AND ANN].

2) Frank asked for keys, so we would write [FRANK:] Darcy, do you have the keys?

3) Darcy don't know the exact location of the keys, so she checks her pockets first, before going out of the room to find them:

Darcy: [searching her pockets] I left them upstairs. Wait here for a minute. [exit Darcy.]

i have heard the mermaids singing, each to each.

i do not think they will sing to me

may i you with anything?