1. When winter comes, children are playing snowballs.
When spring comes, children like to go for a walk.
When summer comes, children like to ride a bicycle.
When autumn comes, children go to school.
2. When the weather changes, children like to watch at the windows.
3. -начало предложения- they go to the bar.
4. If it rains children must take their umbrellas.
5. If it doesn't rain, children are happy.
6. If it snows, children make snowmen.
7. If it doesn't snow, children are crying.
Все это лишь примеры, вы можете поменять сами предложения)