The party was meant to be a surprise to everyone who would take part, but one of the organ

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(答案→)A. gave away
B. gave out
C. gave up
D. gave back
解析：本题考查give短语辨析。句意：本想晚会是给每个参加者的惊喜，但其中一个组织者泄露了这计划。   A．give away泄露(秘密等)；分发；赠送；出卖； B．give out       分发；用尽；公布；  C．give up 放弃；  D．give back归还；送回；恢复。