(单选题)How cayou ______ and let him treat his dog like that
·stand by
·stand up
·stand for
·stand out
出自:华北水利水电大学英语

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