Докажите, что для любых множеств A, B, C:
A∪(B∪C)=(A∪B)∪C

Complete the sentences with the correct form of the word n brackets.

Explame: Denis is the best ... in our school. (swim) - Denis is the best swimmer in our school.

1. The popular ... took part in the concert yesterday.(sing)

2. Paula wants to become an English ... .(teach)

3. Ivan Pavlov is a world - famous ... .(science)

4. This club is only for famous ... of our country.(travel)

5. I think you will be a successful ... in the future.(write) 

звуковая модель слова синяя