To our great surprise, we found everything when we got back home. We doubted whe
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To our great surprise, we found everything ________ when we got back home. We doubted whether we had arrived at a wrong place.
A.changes
B.changing
C.changed
D.has changed
试题答案
C
A项应为changed或had changed；B项明显有误；D项时态不对。C项用过去分词作宾补。