When we practice speaking English we often end up in Chinese.A. to speak B. speakC. spok

问题补充：

When we practice speaking English, we often end up in Chinese.

A. to speak

B. speak

C. spoken

D. speaking

答案：

A. to speak

B. speak

C. spoken

(答案→)D. speaking

解析：句意；当我们练习说英语时，我们常常用汉语结束演讲。动名词作宾语表示抽象动作，结合语境可知选D。