19

Russia is one of the countries with the largest numbers of ethnic groups in Europe. 185 ethnic groups or nationalities have varied population from millions of people to just ten thousand forming the smallest group. The ethnic groups or nationalities are spread across the country. They are represented in all the levels of government.
«ten thousand forming the smallest group» - десять тысяч формирующий самую маленькую группу (Participle I - причастие )

FORM

20

In Russia, there are more than 100 languages spoken with Russian being the official state language. Some of the largest ethnic groups in Russia include Russians, Tatars, Ukrainians, and Bashkirs.
«there are more than 100 languages spoken with Russian» - на русском языке говорящихся более чем на 100 языках (Participle II - – пассивное причастие)

SPEAK

21

J.K. Rowling is the pen name she uses as a writer. The J is for Joanne, her real first name, but she prefers to be called Jo.
«but she prefers to be called Jo» - но она предпочитает, чтобы ее называли Джо (Present simple Passive)

CALL

22

Apparently, people only call her Joanne when they’re angry with her. The K is made up. Her publisher asked her to write using a name with two initials, but she did not have a middle name.
«she did not have a middle name» - у нее не было отчества (тогда не имела) (Past Simple – простое прошедшее)

NOT HAVE

23

Jo did a few different things before she struck upon the idea of writing books for children. For some time, she worked as a teacher of English in Portugal. The idea for the Harry Potter novels came from nowhere while she was going on a train to London. She said, “The characters and situations came flooding into my head”.
«while she was going on a train to London» – в то время как она ехала на поезде в Лондон (событие происходит во время процесса) (Past Continuous – прошедшее длительное)

GO

24

Seven Potter novels later Rowling became one of the richest women in the world. In fact, her last four books broke records for the fastest sellers in literary history.
«her last four books broke records for the fastest sellers in literary history» - ее последние четыре книги побили рекорды самых быстро продаваемых книг в истории литературы. (Степени сравнения)

FAST