Yesterday is very happy.请问这句话错了没

来源：学生作业帮助网编辑：作业帮时间：2024/05/19 10:03:30

Yesterday is very happy.请问这句话错了没
Yesterday is very happy.请问这句话错了没

Yesterday is very happy.请问这句话错了没
错了yesterday不能做主语