having done可否作宾语,如try having done sth
having done可否作宾语,如try having done sth
对having done/having been done作状语时 不清楚
Having been done ,done,having done
(not)having done sth,sb did
分词作状语:doing ,done ,having been done ,noe having done ,都怎么用?
having done 为什么不能作后置定语
not having done 还是having not done?
never having done还是having never done
having been done 和 done
having done 与done作后置定语时的区别
分词作状语having done和done 有什么区别
having been done 和done作状语的区别