Назовите самые высокие горы: а) Евразии; б) Северной Америки; в) Южной Америки; г) Африки. Каковы их преобладающие высоты; максимальная высота?

1)What are the students doing now
2)Kerry is making christmas cake
3)they are not doing their homework now
4)is it snowing now
5)why is he reading that book

1.What are the students doing now?
2.Kerry is making christmas cake
3.They are not doing their homework now
4.Is it snowing now?
5.Why is he reading that book?