Brian ________ many famous places since he came to live in Shanghai last year.
问题描述：
Brian ________ many famous places since he came to live in Shanghai last year.
A:has visited B:will visit C:was visiting D:had visited
请详述理由,
答
选A.固定句型：主句用现在完成时,since 引导的从句用一般过去时.