LogFAQs > #980274496

they are speaking modern.

also, to be clear, changing a few words isn't "old english"

this is old english:

Hwt. We Gardena in geardagum,
eodcyninga, rym gefrunon,
hu a elingas ellen fremedon.
Oft Scyld Scefing sceaena reatum,
monegum mgum, meodosetla ofteah,
egsode eorlas. Syan rest wear
feasceaft funden, he s frofre gebad,
weox under wolcnum, weormyndum ah,
ot him ghwylc ara ymbsittendra
ofer hronrade hyran scolde,
gomban gyldan. t ws god cyning.

Then there is middle english:

Whan that Aprille with his shoures soote,
The droghte of March hath perced to the roote,
And bathed every veyne in swich licur
Of which vert engendred is the flour;
Whan Zephirus eek with his swete breeth
Inspired hath in every holt and heeth
The tendre croppes, and the yonge sonne
Hath in the Ram his halfe cours y-ronne,
And smale foweles maken melodye,
That slepen al the nyght with open ye,
So priketh hem Natre in hir corages,
Thanne longen folk to goon on pilgrimages,

then there is just changing a few words, like thou and thine, and that's just modern english with a few old words.