The one concern for parents and students is ______ if the student pursues their

题型：不详难度：来源：

The one concern for parents and students is ______ if the student pursues their university education in a foreign country, the student will not have the opportunity to establish social contacts in China.

A．what

B．that

C．whether

D．/

答案

B

解析

表语从句为陈述一个事实，故答案为B。