He quickened and ______ his walking pace as he heard the announcement in the lou

游客2024-09-30 23

问题 He quickened and ______ his walking pace as he heard the announcement in the loudspeakers that the train would leave in ten minutes.

选项 A、prolonged
B、lengthened
C、extended
D、stretched

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 。

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Hequickenedand______hiswalkingpaceasheheardtheannouncementinthelou