_______ [

A、 ] having built [

B、 ] being built [

C、 ] having been built [

D、 ] building
出自:阿坝师范学院大学英语

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