listEning 6 "historyClAss"
{$mEDiAurl}
how DoEs thE proFEssor orgAnizE his lECturE
A、hE mAkEs A pErsuAsivE ArgumEnt in FAvor oF soD homEs.
B、hE nArrAtEs storiEs ABout liFE on thE wEstErn FrontiEr.
C、hE ExplAins thE proCEss For BEComing A homEstEADEr.
D、hE ContrAsts sEvErAl typEs oF homEs in thE wEst.