17.Susan started to clean the room, Lily was preparing lunch. A.however B.but C.meanwhile D.when 查看更多

 

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Susan started to clean the room;            Lily was preparing lunch.

    A.however              B.but                      C.meanwhile      D.when

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Susan started to clean the room;            Lily was preparing lunch.

    A.however                  B.but                            C.meanwhile        D.when

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