If you like table tennis and _______practicing it, you will become very good at it.
(2 分)
A.try on
B.depend on
C.center on
D.keep on
出自:管理学基础

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块