помогите по британскому )Поставить глаголы в подходящем медли 1)the sky (to

Помогите по британскому )
Поставить глаголы в подходящем времени
1)the sky (to be) blue today,but yesterday it (to be) grey
2) last Sunday the children (to be) in the forest with their uncle
3) When it snows, the trees (to be) not green or brown, they (to be) white
4) it (to be) not always cold in winter, and last winter it (to be) warm
5) kale (to be) at home now,but at ten oclock she (to be) at school