Which lines in this excerpt from act I, scene I, of Richard III use foreshadowing?
SIR ROBERT BRAKENBURY: I beseech your grace to pardon me, and withal
Forbear your conference with the noble duke.

GEORGE PLANTAGENET (Duke of Clarence): We know thy charge, Brakenbury, and will obey.

RICHARD III (Duke of Gloucester): We are the queen's abjects, and must obey.
Brother, farewell: I will unto the king;
And whatsoever you will employ me in,
Were it to call King Edward's widow sister,
I will perform it to enfranchise you.
Meantime, this deep disgrace in brotherhood
Touches me deeper than you can imagine.

GEORGE PLANTAGENET (Duke of Clarence): I know it pleaseth neither of us well.

RICHARD III (Duke of Gloucester): Well, your imprisonment shall not be long;
Meantime, have patience.

GEORGE PLANTAGENET (Duke of Clarence): I must perforce. Farewell.

(Exeunt CLARENCE, BRAKENBURY, and Guard)

RICHARD III (Duke of Gloucester): Go, tread the path that thou shalt ne'er return.
Simple, plain Clarence! I do love thee so,
That I will shortly send thy soul to heaven,
If heaven will take the present at our hands.
But who comes here? the new-deliver'd Hastings?