问题补充：
No one knows what in fifty years.
A. will our life be like
B. is our life like
C. our life will be like
D. our life is like
答案：
A. will our life be like
B. is our life like
(答案→)C. our life will be like
D. our life is like
解析：宾语从句中一般为陈述语序，需注意当疑问词做从句主语时，则貌似倒装句，需注意区分。关于引导词的区分需结合引导词的基本含义及其在句子中所承担的句子成分进行具体分析。宾语从句的时态和主句没有必然的联系，需结合语境具体分析。
