问题
选择题
No one knows ________ in the future.
A．what will be happen
B．what will happen
C．what will it happen
D．what it will happen
答案
答案：B
B knows后是一个宾语从句，宾语从句用陈述句语序，排除C，happen一般不用于被动语态，排除A；what作主语，it多余，排除D；故选B。
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