{{i}}quEstions 17—20 ArE BAsED on thE Following tExt ABout A FirEFightEr. you now hAvE 20 sEConDs to rEAD quEstions 17—20.{{/i}}

whAt surprisEDDonAlD hErBErt’s FAmily AnD DoCtors onE sAturDAyA．hE hAD slEpt For tEn yEArs.
B．his BrAin wAs lEFt DAmAgED、
C．hE stArtED to spEAk AFtEr tEn yEArs.
D．hE DiDn’t rEmEmBEr his wiFE.