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Чтобы сделать высказывания отрицательными, используем вспомогательный глагол "wasn't" или "weren't" в зависимости от подлежащего. Давайте разберем каждое предложение: 1. **Ben was busy yesterday.** Отрицательное: Ben **wasn't** busy yesterday. 2. **Kate’s grandad was in that shop.** Отрицательное: Kate’s grandad **wasn't** in that shop. 3. **There was a lamp on the table.** Отрицательное: There **wasn't** a lamp on the table. 4. **Bill and Tim were noisy yesterday.** Отрицательное: Bill and Tim **weren't** noisy yesterday. Для отрицательных предложений мы добавляем "not" после глаголов "was" или "were", образуя "wasn't" или "weren't".