Do I have to take TOEFL and GRE for graduate students?

1. TOEFL is necessary for American universities, but each school has different requirements for TOEFL scores and total scores. You should check it on the school website. GRE is not necessary for every school, but even if it is not necessary, most schools will say that GRE scores will be of great help to your application, which is highly recommended. Some American schools also accept IELTS scores. Finally, if you want to get a t a or RA scholarship, then maybe the school will require you to have a TSE score.

2. If the certificate exceeds the time limit, it must be reissued. Americans have no respect for this.

Yes, if you want to apply for a postgraduate or doctoral degree in the United States, you must have a bachelor's degree certificate and a degree certificate.

4.GPA is very important for American applications. Compared with other projects, it can be arranged in the following order: GPA >；; PS> recommendation letter > language achievement. The score here can be divided into two parts: the overall GPA and the professional GPA. The so-called overall GPA is the GPA of all subjects, and the professional GPA is the GPA of professional courses. Generally speaking, both are very important, but sometimes some universities will pay more attention to the professional GPA. If your GPA is not high, you should take the following measures: (1) Revise before junior year. (2) In junior year, you should get high marks in specialized courses. (3) If you have time, you can take GRE subjects, which can make up for the defects of your grades to some extent. (4) When the printer lists, some subjects can be deleted appropriately. However, it must be reminded that you must never modify your grades when printing your transcripts. Of course, if you can change all the grades in the school database, that's fine. Otherwise, if you change your knowledge on your report card, it will be very miserable if you are found out. However, when you can make a report card, you can delete the subjects appropriately, such as Ma Zhe, and ask the school you want to apply for.

It's ok to change majors abroad, but it's best to contact the professor to explain if you want to have professional basic course results. It's not that hard. My brother's undergraduate and graduate students studied physics, and later went to the United States to study for a doctorate in electronic engineering.