Look!How ___(hard) the students are working!

Look!How ___(hard) the students are working!
Look!How ___(hard) the students are working!

Look!How ___(hard) the students are working!
虞其君英语
Look!How ___(hard) the students are working!
答案：hard
中文：看!学生们学习多努力啊!
解析：work hard为努力学习,这里用hard为固定用法.
补充：hard-working 勤奋的,努力的

hard 原型 学生学习多么努力

hard 因为hard既可作形容词，也可作副词。这里是做副词，修饰动词work，work hard努力学习。
hardly意思就变了，是“几乎不”的意思，不是hard的副词。

hard
work hard是学习努力的意思

是hard，意思是：看！学生们多么努力啊。