Elephants_?carry wood by people long time ago.A.was trained B.tra_英语解答

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

人气：425 ℃　时间：2020-06-25 03:20:01

解答

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.