I made a speech in front of so many people I felt quite nervous.A. The first time whenB.

问题补充：

I made a speech in front of so many people, I felt quite nervous.

A. The first time when

B. For the first time

C. By the time when

D. The first time

答案：

A. The first time when

B. For the first time

C. By the time when

(答案→)D. The first time

解析：考查连词短语。根据句中结构，需要填连词短语the first time第一次，其它选项只可作状语，故选D。