{{B}}quEstions 19-22{{/B}}

A、A、FormAl tAlk BEtwEEn thE Boss AnD his sECrEtAry.
B、An inFormAl tAlk BEtwEEn two FriEnDs.
C、A、FormAl tAlk BEtwEEn A proFEssor AnD A stuDEnt.
D、An intErviEw BEtwEEn thE intErviEwEr AnD thE joB AppliCAnt.