Question

She often goes to work __________     .

A．by a underground

B．by underground

C．by the underground

D．take the underground

Answer 1

B

試題分析：句意：她經常坐地鐵上班。短語by underground坐地鐵，中間不需要冠詞；或者可表述為She often takes the ground to work.結合語境故選B。