倒装中的谓语动词问题就如1.not only did he come ,but also he brought us good news2.No sooner had I gone out than he came to see me.为什么第一句用did 为什么第二句用had .怎样区分使用啊?
问题描述：
倒装中的谓语动词问题
就如1.not only did he come ,but also he brought us good news
2.No sooner had I gone out than he came to see me.
为什么第一句用did 为什么第二句用had .怎样区分使用啊?
答