问题
选择题
_________ where the sound lab _________?
A．Has it decided; will built
B．Is it decided; it built
C．Has it been decided; will be built
D．Will it be decided; will be built
答案
答案：C
这是一般疑问句，变成陈述句是：it has been decided where the sound lab will be built这里的it是形式主语，where引导的是真正的主语，两个空都是被动式，句意是：录音实验室将在哪里建成被决定了吗？第一空用现在完成时的被动，第二空是将来时的被动。选C。