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BythetimeI——home,IrealizedthatI————myumbrellaintheshop.A.got,leftB.arrivedat,forgotC.gotto,hadforgottenD.arrived,hadleft

题目详情
By the time I —— home,I realized that I ———— my umbrella in the shop.
A.got,left B.arrived at,forgot C.got to,had forgotten D.arrived,had left
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答案和解析
首先,home是副词,前面不用介词at,to,故排除B,C选项.
realized是过去式,我把伞忘在商店是在过去的过去,故用过去完成时;
by the time 后可加现在式,过去式,选D