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___________where the sound laboratory9
A.Has it decided; will build
B.Will it be decided; will be built
C.Has it been decided; will be built
D.Is it decided; is built
B.Will it be decided; will be built
C.Has it been decided; will be built
D.Is it decided; is built
参考答案
参考解析
解析：第一个空，事情被决定，强调其结果，故用现在完成时的被动语态。第二个空，语音室应该是被建造．故选C。
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