29. You know she (stand) __________looking at that picture for the last twenty minutes. KHÓ ẤDISJI SẠIDASD SDAF SDF SDAFAS DF
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29. You know she (stand) has been standing looking at that picture for the last twenty minutes.
Có for the last twenty minutes nên dùng thì HTHTTD
Cấu trúc thì HTHTTD: S+has/have+been+V_ing+O
Cho mik hay nhất đc ko:)?
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