Going to the United States suggests taking the TOEFL. For graduate students, the new TOEFL is about 100. IELTS is somewhat simpler than TOEFL. In American schools, 6.5 is generally enough, which may be better than TOEFL 100. Most schools accept IELTS, but some schools require IELTS score of 7 because they discriminate against IELTS. If you have time, energy and food, take both exams. If one fails, you can use the other. If both are good, you can send them to show your strength and sincerity to the school. Generally, both grades can go to a good school. But the specific situation should be analyzed in detail. It is recommended to look at the website of the school you want to apply for and understand the requirements, so that you will have a bottom before the exam. The requirements of GRE, GMAT, TOEFL and IELTS are all on the school website. If you can't meet the requirements of the school, it will be difficult to pass the application. But in theory, unless it is a high score close to perfect score, it is a waste to get too high in these exams, especially the pure language exams TOEFL and IELTS.
Studying in Russia is also an advantage. Compared with domestic ordinary undergraduate courses, it is relatively more competitive. Therefore, it is quite simple to apply for an American school if you want to pass the TOEFL and IELTS tests and get a higher GRE score.
A high GRE score helps to apply for the award. Although there are few general business awards, even if it is a comfort award of 2000-5000 yuan, the living expenses can be considered to have some landing. In addition, if the undergraduate social experience is less, the resume is not good-looking, and all the scores are high, you can prevaricate with the reason that "I love learning very much and have a strong learning ability". I have no work experience but am limited by time and external conditions. With work, I can do it well by strength. "
Find time to attend classes in New Oriental. TOEFL IELTS GRE is the strength of New Oriental. If you don't have enough time to go to the VIP in New Oriental, burning money is not bad. Sign up for a large class when you have time. Examination experience and review methods, er, it is impossible not to go to New Oriental, which is also cost-effective. Then, if you have the money and time, you can go to a purely foreign-taught teaching institution, such as Weibo, which is stress-free and entertaining. There is no harm in creating an English environment and finding feelings. That is, if the purpose is purely an exam, don't waste your life in a foreign teacher class.
If you are in Russia, there should be English courses in universities there. I don't know what the system is like in your place, but if there are still credits for tuition, go to an English class and listen.
Alas, alas, wordy again. In a word, applying for GRE is almost universal, GMAT business is optional, LSAT is compulsory for most laws, and dentists have special exams. However, on the whole, GRE does have an omnipotent tendency. Language, TOEFL and IELTS can all meet the requirements of the school. Although there are successful examples of applying for TOEFL and GRE awards, it is not the realm that ordinary people can reach. To be on the safe side, we should take the exam and carry forward the spirit of the college entrance examination. We should take the TM exam as high as possible.