他的儿子大部分时间在学校学习
His son spends most of the time on studying at school.
Most of the time,his son studies in school.
Most of the time,his son learns in school.
spend sometime on something 花费时间做某事
例句： As your instructor advised , you ought to spend your time on something worthresearching to。 正如你的导师建议的那样，你应该把时间花在值得研究的课题上。
study at school / study in school / learn in school 在学校学习
例句：
I am lucky to study in such a good shool and I love my school.
能在这样一所学校学习，我觉得很幸运。
What subjects does he study at school?
在学校他学什么课程？
What did you learn in school today?
你今天在学校学了什么？
