прямая проходящая через начало координат, является касательной к графику функции y=f(x) в точке а(2;-4.5). вычислите f'(2)

Вставьте артикли, где это необходимо :                                                         

1)Nina  had ....... different  presents: ...... dolls,books, .... sweets, .... games.

2)I made ..... different things for my doolls: ..... chairs,.....tables,....desks and ... sofas.

3)Let'sgo for .... walk.

4)....... Tom likes to play ..... football.

5)....... different trees grow in .....different countries.

6)I don't watch ..... television in ...morning

7)I visit my grandparents on .....Sunday.I help them about .... house.

8)...... different children like ..... different games.