Glad to see you back . How long ______ iRussia( )
·did you stay
·have you stayed
·were you staying
·have you beestaying
出自:运营管理

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