题目内容：

Who will in charge of the party and where it will be held ___now.
A.is not cleared up
B.has not been cleared up
C.have not been cleared up

优质解答

谁举办聚会和哪里举办到现在都没有明确.
句子隐含着要用现在完成时
而且who……and…… 表示同一概念,谓语用单数
所以选B