We'll plant trees tomorrow.(用at this time yesterday 改写)We ___ ____英语解答

We'll plant trees tomorrow.(用at this time yesterday 改写)
We ___ ___ trees at this time yesterday.

人气：121 ℃　时间：2020-06-11 00:22:46

解答

were planting
at this time yesterday.是过去进行时的标志.
所以用 were planting