This machine was used to cut down trees in the past (改为同义句）.This _英语解答

This machine was used to cut down trees in the past (改为同义句）.
This machine___ ___ ___ ___down trees in the past
横线上填什么啊?

人气：482 ℃　时间：2019-10-24 20:28:12

解答

也许是“have been to cut"吧.