That.s part of the reason_______ I chose to study in the Open University.
A. why
B. how
C. what
出自:国开英语2

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