The Blacks___many places of interest since they came to china.A will visit B.visited C.visitD.have visited 选哪个?说下为什么

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The Blacks___many places of interest since they came to china.A will visit B.visited C.visitD.have visited 选哪个?说下为什么
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

The Blacks___many places of interest since they came to china.A will visit B.visited C.visitD.have visited 选哪个?说下为什么
D since用在现在完成时当中

后面从句是一般过去式,前面主句就应该用完成时。
所以选D

have visited since 反应出时态是现在完成时

c