The children were running on the playground as fast as they can.哪里错了是不是they could

分类: 作业答案 • 2022-01-02 15:43:00

问题描述：

The children were running on the playground as fast as they can.哪里错了
是不是they could

答

是的，用they could

答

是的,应该把can 改为 could,时态应前后保持一致.