su hai went to park last month对last month 划线提问

问题描述:

su hai went to park last month对last month 划线提问

When did Su Hai go to park?对时间提问要用When 开头,后面引导一个一般疑问句.这里的时态用的是一般过去式,所以要用did 引导,把when还原成go.