Question

They ________ often _______to be careful before _______the road. A．are, told, cross B．are, .

They ________ often _______to be careful before _______the road. A．are, told, cross B．are, told, across C．are, telling, crossing D．are, told; crossing

Answer 1

D

D“他们经常被告诉过马路时要小心。”，根据句意得知，考查的是被动语态。before在此为介词，后加doing，故选D。