Make the sentences negative, ask general and special questions
1. i and my friends went to the mountains every summer.
2. when we found his, he was sitting on the beach.
3. He had finished this thing only by midnight 4. Jean had been working since the morning, when friends went to help him.
ответ в файле, так же в файле правила для твоего вопроса, как его выполнить если будут другие вопросы и так далее.