Lot ... students go ... college every year. My friend’s son is ... college

Общий вопрос:
Did Arkhangelsk become the major center of Russian northern trade with foreign countries in 17-th century?

Специальный вопрос:
When did Arkhangelsk become the major center of Russian northern trade?

Альтернативный вопрос:
Did Arkhangelsk become the major centre of Russian northern trade in 17-th century or in 18-th century?

Разделительный вопрос:
In 17-th century Arkhangelsk became the major center of Russian northern trade with foreign countries, didnt it?

Вопрос к подлежащему:
What city became the major center of Russian northern trade with foreign countries?

1) They are doing their homework in the afternoon.
2)They are not going for a walk in the evening.
3)My father is not working...
4)He works every day.
5) I am reading books in the evening.
6) I am not reading books/
7) I am writing an exercine now.
8) I`m not writing now.
И так далее:

 
 Для того чтобы по­стро­ить про­стое утвер­ди­тель­ное пред­ло­же­ние, мы ис­поль­зу­ем гла­гол в пер­вой форме. Пер­вая форма гла­го­ла – это ин­фи­ни­тив без ча­сти­цы to. На­при­мер, у гла­го­ла to play пер­вая форма – play. Дан­ная форма ис­поль­зу­ет­ся c ме­сто­име­ни­я­ми I, you, we, they, или же со сло­ва­ми, их за­ме­ня­ю­щи­ми. Что же ка­са­ет­ся ме­сто­име­ний he, she, it, то здесь к гла­го­лу до­бав­ля­ет­ся окон­ча­ние –s.