several times前的时态?比如He _____failed the test several times.

several times前的时态?比如He _____failed the test several times. several times前用什么时态 he failed several times的several times是什么成分 英语时态.he has come here several times.为啥不对? several times several times前面加介词for吗?two times呢?那two times前必须加介词for吗？ several times 译中 several times 是现在完成时的时间状语吗 2007年湖北高考完成句子the fact that he has failed for several times ,makes him very upset.(fail)为什么不用一般过去时而要用现在完成时呢,后面动词不是用的一般时态makes吗 He has failed several times . 怎样就several times提问 several times是什么词呀 The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态 用所给动词的适当形式填空 1.She_____to the Great wall several times.(go) I had failed for several times.其中for的用法是什么 several times的意思A、几个时间B、几次C、许多时间D、没有时间 He____(repeat)several times that he was busy.什么形式的?怎么填? 用所给动词的适当形式填空They_____(see)the elephant several times.