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

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

A.what

B.that

C.when

D.which

答案及解析： C

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.