A-A+
______ the guest speaker was ushered into the
问题详情
______, the guest speaker was ushered into the auditorium hall to give the lecture.
A．Being shown around the campus
B．Having shown to the campus
C．After been shown around the campus
D．Having been shown around the campus请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：因为在was ushered into the auditorium hall之前就发生了be shown around the campus这一动作，所以应用完成时的被动语态。因此D项为正确答案。
