_______they_______th的知识精选

_______they_______,theirclassmateswereallintheclassroom...
问题详情:_______they_______,theirclassmateswereallintheclassroom.      A.Before;werearguing    B.When;arearguing      C.While;werearguing     D.While;arearguing 【回答】C知识点:相...
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