——several times,they need some encouragementa.failedb.having failed在非谓语中done 和having done 有什么区别

several times ——several times,they need some encouragementa.failedb.having failed在非谓语中done 和having done 有什么区别 连词成句:they been to several Shanghai have times several times 译中 he failed several times的several times是什么成分 He has failed several times . 怎样就several times提问 several times是什么词呀 英语翻译 I read only.book.several times several times前用什么时态 he什么(be)to　shanghai　several　times He telephoned me several times last 是some times还是several tiomes? Several times over the past decades some times和several times有什么区别啊? several times 用only a few times 替换可以吗/ telephone number several times,but he couldn't learn it by heart.——the telephone number several times,but he couldn't learn it by heart.Ahaving told B Having been told .C although he had been told D He had been told.我想知道这道题目涉及 several times前的时态?比如He _____failed the test several times.