The little boy was allowed to go swimming _______ he kept near the other boys.A.provided thatB.in caseC.now thatD.by the time
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A解析试题分析：考查连词：A. provided that如果，以…为条件，B. in case 以防C. now that 既然D. by the time到…时候为止，句意：小男孩被允许去游泳，条件是他能和别的男孩靠近些。选A.考点：考查连词词组
点评：连词主要看上下文的逻辑关系，短语的辨析没有捷径可走，只能在平时的学习中加强记忆。