There is no doubt ________ only by lifelong learning can Wap版

试题详情及答案解析

There is no doubt ________ only by lifelong learning can we keep up with the advancing society.

A．whether

B．that

C．which

D．why

答案：B

试题分析：考查同位语从句。句中同位词是doubt，that引导同位语从句，起连接作用，不做成分。句意：毫无疑问，只有终身学习才能跟上社会的进步。故B正确。
考点：考查同位语从句