Выполним задание.
- (Marina/Marina's) grandmother is in Kolomna.
- (Vlad/Vlad's) has got a friend in Novgorod.
- (Masha /Masha's) mother is a doctor.
- (Misha /Misha's) toy soldiers are in the box.
- (Misha/Misha's) has got eighteen toy soldiers.
Ответ: смотри решение выше.