The Blacks___many places of interest since they came to china.A will visit B.visited C.visit
问题描述：
The Blacks___many places of interest since they came to china.A will visit B.visited C.visit
D.have visited 选哪个?说下为什么
答
D since用在现在完成时当中since用在现在完成时中为什么选D过去式的since后面的从句才是一般现在时 前面用现在完成时