Elephants_?carry wood by people long time ago.A.was trained B.trained to C.train to D.were trained to

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/05 15:00:33

Elephants_?carry wood by people long time ago.
A.was trained B.trained to C.train to D.were trained to

选 D,很久以前,大象被人们训练来搬运木材.
long time ago很久以前,过去式,大象被训练,所以用过去式被动
to carry wood 不定式作目的状语.