A-A+
The problem is that they are unable to communi
问题详情
The problem is that they are unable to communicate effectively in the language______ public services are offered.
A．by which
B．for which
C．in which
D．of which
参考答案
正确答案：A
解析：题干的意思是：问题是他们不会用公共服务所提供的术语进行有效沟通。定语从句，原句为：the language offered by public service，故选A。
