A-A+
He quickened and ______ his walking pace as he
问题详情
He quickened and ______ his walking pace as he heard the announcement in the loudspeakers that the train would leave in ten minutes.
A．prolonged
B．lengthened
C．extended
D．stretched
参考答案
正确答案：B
解析：动词辨析题。A prolong“(使时间)延长”；B lengthen“延长，加长(物体长度)”；C extend“扩充，延伸(范围)”；D stretch“舒展；拉直，拉长；展开，铺开”。根据后面的宾语his walking pace，可见这里指的是“步幅的加大”，故选B 。
