I made a promise anyone set me free I would make him rich.
A. as if
B. that if
C. which when
D. if
网友回答
A. as if
(答案→)B. that if
C. which when
D. if
解析：连接同位语从句的从属连词主要有that, if, whether，和疑问词（what how where when ...)。that引导表示陈述句的同位语从句，if和whether，whether...or not引导表示“是否”的一般疑问句的同位语从句。这题要注意同位语从句缺少条件状语从句的连词。