问题补充：
I really want to know .
A. what is wrong with my brother
B. how will he go to Beijing tomorrow
C. if had he bought that car
D. where did he go yesterday
答案：
(答案→)A. what is wrong with my brother
B. how will he go to Beijing tomorrow
C. if had he bought that car
D. where did he go yesterday
解析：英语宾语从句中一般为陈述语序。四个选项中选项BCD都是倒装语序，选项A中疑问词作主语，貌似倒装，故选A，我真地想知道我的哥哥怎么了。
