My uncle got sick last month and _______ in hospital since then. _英语解答

My uncle got sick last month and _______ in hospital since then. 空填哪个?
A.was B.had beenC.has been D.would be

人气：154 ℃　时间：2019-11-04 18:55:37

解答

C
找到关键词 since then
确定用现在完成时态结构 have /has done
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