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 Thetwofriends

 Thetwofriends

問題詳情: Thetwofriends______onlineforthreehours,andtheywillgoon.  A.hadbeenchatting    B.hadchatted    C.werechatting    D.havebeenchatting【回答】B知識點:過去完成時及其被動式題型:選擇題...