Ответ:

1. It often rains in this place in winter. Does it often rain in this place in winter? It doesn't often rain in this place in winter. Подлежащее rains с окончанием s, вспомогательный глагол для вопроса и отрицания будет does, слово rain будет без окончания -s. When does it often rain in this place? Where does it often rain in winter?

2. It sometimes snows in March. Does it sometimes snows in March? It doesn't snow in March. When does it sometimes snows? How often does it snow in March?

3. They swim a lot in the sea every summer. Глагол-подлежащее без окончания -s, поэтому вспомогательный глагол для вопроса и отрицания будет :Do. Do they swim a lot in the sea every summer? They don't swim a lot in the sea every summer. When do they swim a lot in the sea? Where do they swim every summer?

4. The sun shines brightly in the sky in summer. Does the sun shine brightly in the sky in summer? The sun doesn't shine brightly When does the sun shine brightly in the sky? Where does the sun shine brightly in summer? How does the sun shine in summer?

Объяснение: