There came a point in his life he had to think seriously about his futureA. whatB. thatC

问题补充：

There came a point in his life he had to think seriously about his future．

A. what

B. that

C. when

D. which

答案：

A. what

B. that

(答案→)C. when

D. which

解析：

这题考查定语从句的用法：先行词是point“阶段”，定语从句中缺少时间状语，所以用when，句意是：在人生中，他到了一个阶段这时他要认真考虑他的未来。选C.