Решение:
- He spent last summer in the country. (Past Simple, действие в прошлом)
- He did not spend last winter in the country. (Past Simple, отрицание в прошлом)
- Where did he spend last spring in the country? (Past Simple, вопрос в прошлом)
- Where will he spend last autumn? (Future Simple, вопрос о будущем)
Ответ: spent; did not spend; did spend; will spend.