At what time shall we gather at the school gate?这个

问题补充：

At what time shall we gather at the school gate?这个句子怎么分析,变成陈达句是怎样的.我不太明白像这样的句子应该怎么分析,

答案：

we gather at the school gate at...（时间),相当于when shall we gather at the school gate?

明白吗?