He felt his chair at the time of earthquake.A. movedB. to moveC. is movingD. moving

问题补充：

He felt his chair at the time of earthquake.

A. moved

B. to move

C. is moving

D. moving

答案：

A. moved

B. to move

C. is moving

(答案→)D. moving

解析：feel后跟的复合结构，可以有现在分词（表示主动或在正在进行中）。