用appear to have done造句

用appear to have done造句 have sth to be done/have sth done?为什么要用have anyting to be done? to have been done 怎么用 have done to 用sb/sth is said to have done/to have been done 个造个句子 somebody was thought to do/ have done.句型中,何时用to do,何时have done have been done 和 to be done appear to should ought to have done were to have done 造句, be believed to have done were able to have done should have done 可以换成 ought to have done嘛? have something done 与have sth.to be done 区别 pretend have done还是pretend to have done? 非谓语动词having been done,to have been done什么时候用?举一些例子. She ____ appear in a bright red dress and long black stocktings 空里填must 我想知道为啥不填have to?而用must呢?还是说have to也可以使用,只是must更好?She has to appear in. Ought to have done .must have done.should have done的区别