Ответ:
1. They always
pick/rake flowers in May.
2. They sometimes
go/play in the snow.
3. They usually
rake/shine leaves in the autumn.
4. They always
go/play swimming in the summer.
5. It's warm and the sun is
shining/raking.
6. It's raining
heavily/greatly now.
7. It's
freezing/swimming today.
8. It's very
cold/hot today. We can go swimming.
Ответ: Выбор правильных глаголов сделан.