问题
选择题
Interviews were carried out ________ over the telephone，via e－mail or fax or face to face in four cities including Beijing，Shanghai，Guangzhou and Wuhan.
A．supremely
B．extremely
C．officially
D．slightly
答案
答案：C
根据句意，进行正式的访谈(如通过电话、电子邮件、传真或面谈)，应选副词officially。