1.There appeared to be no better ways.
翻译:(看起来)似乎没有更好的办法了.
反意疑问句:There appeared to be no better ways,didn't there?
此处appeared虽然是连系动词,但是它和look/seem/feel/smell等系动词一样,反意疑问句必须借助于助动词来表达.
如 The flower smells nice,doesn't it?
2.dared to do sth (过去)敢于做某事,反意疑问句是:didn't sb(代词)?
从to do sth可以看出dare此处是实义/行为动词,dared表过去式,所以用didn't sb?