So loudly that everyone of the class could hear him.A. did he speakB. did he spokeC. spoke

问题补充：

So loudly that everyone of the class could hear him.

A. did he speak

B. did he spoke

C. spoke he

D. he spoke

答案：

(答案→)A. did he speak

B. did he spoke

C. spoke he

D. he spoke

解析：So+形容词，So+副词放于句首时，构成倒装句，句中要加助动词。