________worriesusmostis________stu

发布时间：2020-07-11 05:48:32

________ worries us most is ________ students are both mentally and physically tired after school．













A.What; because












B.What; that











C.That; what











D.That; because

网友回答

B解析考查名词性从句。第一个空是what引导的主语从句：使我们最担心的；第二个空是that引导的表语从句。
以上问题属网友观点，不代表本站立场，仅供参考！