He made a promise anyone set him free he would make him very rich.A. thatB. ifC. whatD. th

问题补充：

He made a promise anyone set him free he would make him very rich.

A. that

B. if

C. what

D. that if

答案：

A. that

B. if

C. what

(答案→)D. that if

解析：考查同位语从句和条件状语从句：句意：他许诺如果有人把他放了，他就会让他富有。that表示同位语从句和promise同位,而这句同位语从句很特别,因为从句又是一句条件状语从句,所以用if引导，选D。