A good storyteller must be able to hold his listeners’ curiosityhe reaches the end.A. whe

问题补充：

A good storyteller must be able to hold his listeners’ curiosityhe reaches the end.

A. when

B. unless

C. after

D. until.

答案：

A. when

B. unless

C. after

(答案→)D. until.

解析：“一个讲故事的高手必须能够让听者的好奇心一直维持到他讲的故事的结尾处。”until引导时间状语从句。