be trained

be trained be trained on 如题 A,training B,trained C,being trained ,D,to be tA,training B,trained C,being trained ,D,to be trained 为什么选B不选D啊 should animals be trained yo help humanswhy? Should Animals Be Trained to Help Humans Should animals be trained to amuse human? ______for weeks ,she could drive the bus.A.To be trained B.Having trained C.To have trained D.Having bee trained 为什么选A 英语翻译testman can’t be proved trained.testman can’t be proved who is trained.testman can’t be proved to be trained. 1.Should animals be trained to amuse human beings? All the players in the football team must be (trained)five time a week.这里为什么要用trained No one can walk the wire without a bit of fear unless _______ very young.A.having been trained B.trained C.to be trained D.being trained我想选A,A对吗,为什么? No one can walk the wire without a bit of fear unless ____very youngA having been trained B trained C to be trained D being trained 我选的A可是答案是B,为什么?这题考的是什么语法点? 正在训练的英语为什么不是be training 而是be trained trained是什么意思? 2.The dog,_____,will be made a good watchdog.A.to train properly B.being trained properly C.properly to train D.trained properly Should animals be trained to help humans?英语作文!120词! should animals be trained to help people?please speak in english,ok? 翻译List the ways in which different animals are,or could be,trained to help people.