发布网友 发布时间:2022-05-29 11:46
共4个回答
热心网友 时间:2023-10-17 00:01
很明显的错误,缺少谓语啊!可以改成They are not.....热心网友 时间:2023-10-17 00:01
not 改为are't热心网友 时间:2023-10-17 00:02
They didn't walk over the bridge.热心网友 时间:2023-10-17 00:03
They aren't walking over the bridge