I have been here since I began to work.为什么前面用的不是过去式,而后面的要用过去
I have been in love with the city____I began to work here A.
为什么have不用过去时,而后面的动词用过去时
I have been sick since yesterday.中have been 是什么是时态为什么要用been.
现在完成时问题过去完成时不是说有两个表示过去的时间词时就用过去完成时么I have taught here since
I HAVE BEEN HERE SINCE TIME
I have been here since 1976.请教been(be)的用法.
We have been living here since 1959 这里的have为什么不用过去时had 为什么li
为什么前面用to learn 而后面用learning呢?
I am in Year 7 at Walker School前面为什么用in而后面用at?
I have lived here since I was born.这个是什么从句.为什么引导词since的前后时态不
i have know him since i have been here.为什么不成立
过去完成时可以have+动词过去分词,也可以have+been如I've lived here since 1987或I