A-A+
(Prior to) our (conference) the (executive) d
问题详情
(Prior to) our (conference), the (executive) director had requested that everyone (was) well prepared.
A．Prior to
B．conference
C．executive
D．was
参考答案
正确答案：D
解析：request that之后的从句应该用虚拟语气，改为should be prepared，其中should可省略。
