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

问题补充：

He felt his chair at the time of the 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 后面接现在分词，表示主动或正在进行。