nce存于句子中时,句子里第二个那啥词用过去式么

问题描述:

nce存于句子中时,句子里第二个那啥词用过去式么
就是I _____(study)in this school since Icame here
填个studied?

since存在与句子中句子多用现在完成进行时,所以应填have been studying