If you often feel tired and can't focus your attention, that is________you have to stop working too hard and to have a rest.
[ ]
A. why B. whether C. when D. what
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
根据n多题专家分析，试题“If you often feel tired and can't focus your attention, that is________you have to stop working toohard and to have a rest.[ ]A. whyB. whetherC. whenD. wha…”主要考查了你对 【连接副词】 等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。
◎ 相似题
与“If you often feel tired and can't focus your attention, that is________you have to stop working toohard and to have a rest.[ ]A. whyB. whetherC. whenD. wha”考查相似的试题有：
