我一到剧场，节目就开始了。（从句用过去完成时，主句用过去时）

No sooner had I arrived at the theatre than the performance began .

youdao

我一到剧场，节目就开始了。（从句用过去完成时，主句用过去时）

No sooner had I arrived at the theatre than the performance began .

youdao