they plant trees in spring的被动语态
问题描述:
they plant trees in spring的被动语态
Trees _____ _____ in spring,才两个空
答
Trees are planted in spring.用被动语态更客观,有时就是不想让听众知道动作的发出这是谁,所以用被动态,因此,by them 可以省略.