Do you remember ______ to Professor Smith during your last visit?(1分)
Ato be introduced
Bto have introduced
Chaving introduced
Dbeing introduced
出自:武汉科技 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