Some students were afraid _________ in class because they thought their classmates might laugh at them
A.of speak
B.to speak
C.speak
D.to speaking
网友回答
B解析afraid是形容词，其常用的句型结构有be afraid to do sth或be afraid of doing sth表示害怕做某事。根据题干的内容可知有些学生不敢在课堂上发言，就是害怕其他同学笑话。