A-A+
Prior to our conference the executive directo
问题详情
Prior to our conference, the executive director had requested that everyone______ well prepared.
A．is
B．be
C．was
D．will be请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：request作谓语时，其宾语从句的谓语应该用虚拟语气。
考点：
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