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 Hewasunhappywhenhesoldhisguitar.Afterall,he

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问题详情: Hewasunhappywhenhesoldhisguitar.Afterall,he_____itforaverylongtime.A.hashad      B.hadhad   C.has   D.had【回答】 B。本题考查动词时态。A是现在完成时,B是过去完成时,C是一般现在时,D是...