动词填空难题,请讲解
问题描述：
动词填空难题,请讲解
Look ,there are some people (training) horse-riding.为什么不用being trained,句意是被训练的.
答
如果想用being trained,可以把原句改成
Look,there are some horse been trained (by people)
被动的意思是主语被做,你的原句主语是people,是train这个行为的发起人,因此用主动!