作业帮为什么:They picked up some rocks and put (them)in the spacesship,为什么要用them呢?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/10 10:10:00
为什么:They picked up some rocks and put (them)in the spacesship,为什么要用them呢?
为什么:They picked up some rocks and put (them)in the spacesship,为什么要用them呢?
为什么:They picked up some rocks and put (them)in the spacesship,为什么要用them呢?
them 是宾语代指rocks
them 代的是rocks