having been done能做主语吗
having been done能做定语吗?
having done 做主语
having done 可以做主语?
having been done 为什么不能做定语?
Having been done ,done,having done
having been done 和 done
非谓语动词做定语时可以用那些结构?having done ,having been done ,having been
Having done和having been done能不能做宾语补足语
had been done & having been done 区别
having been done为什么不能做谓语呢
doing having done being done having been done 造句!
having been done英语语法考验,