回答Do you work or are you a student的常见错误

                
                
这又是某个名师的素材，最重要的错误是后面的大二大三大四学生的说法，这根本就是错的，这种错误还挺常见，原句中的student根本就不需要的 sophomore本来就已经是大（高）二学生的意思了。看看MWALD（不懂可以百度一下）的例句： She's a sophomore in high school.根本就没有sophomore student这种多此一举的说法。其实还有一处错误，Renmin University前应该用介词at，而不是in，以下是Longman Dictionary of Common Errors里的例句：
×: My sister is studying music in university.
√: My sister is studying music at university.
×: I want to study Public Administration in the University of Southern California.
√: I want to study Public Administration at the University of Southern California.
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