he river was high because it () for several weeks.。

A . had been raining
B . was raining
C . has been raining
D . rained

出自:广西科技大学大学英语1

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