Maybe this helps with replies #3 and #4?
https://translate.google.com/#auto/en/%D0%97%D0%B4%D1%80%D0%B0%D0%B2%D1%81%D1%82%D0%B2%D1%83%D0%B9%D1%82%D0%B5%2C%20%D1%8F%20%D1%81%20%D0%9A%D0%B0%D0%B7%D0%B0%D1%85%D1%81%D1%82%D0%B0%D0%BD%D0%B0.%D0%92%D1%8B%20%D0%BD%D0%B0%20EA%20%D0%B8%D0%BB%D0%B8%20RA%20%D0%BF%D0%BE%D0%B4%D0%B0%D0%B5%D1%82%D0%B5%3F%20%D0%A3%20%D0%B2%D0%B0%D1%81%20toefl%20%D0%BA%D0%B0%D0%BA%D0%BE%D0%B9%20%D0%B1%D0%B0%D0%BB%D0%BB%2C%20%D0%B5%D1%81%D0%BB%D0%B8%20%D0%BD%D0%B5%20%D1%81%D0%B5%D0%BA%D1%80%D0%B5%D1%82.%20%0A%0A%D0%97%D0%B4%D1%80%D0%B0%D0%B2%D1%81%D1%82%D0%B2%D1%83%D0%B9%2C%20RD%2C%20%D1%83%20%D0%BC%D0%B5%D0%BD%D1%8F%20IELTS%207.5%2C%20TOEFL%20%D0%BD%D0%B5%20%D1%81%D0%B4%D0%B0%D0%B2%D0%B0%D0%BB%D0%B0.%0A%D0%90%20%D1%83%20%D0%B2%D0%B0%D1%81%20%D0%BA%D0%B0%D0%BA%D0%BE%D0%B9%20%D0%B1%D0%B0%D0%BB%D0%BB%20%D0%B8%20EA%2FRD%3F