Раскройте скобки,употребив глаголы в Present ,Past, или Future Simple Passive 1.we (invite) to a concert last saturday

I) 1. We were invited to a concert last Saturday. 2. Mushrooms are gathered in autumn. 3. This bone will be given to many dog tomorrow. 4. My question was answered yesterday. 5. Flowers are sold in shops and in the streets. 6. His new book will be finished next year. II) 1. Bees gather honey from flowers. Honey is gathered by bees from flowers. 2. We will finish the work in time. The work will be finished by us in time. 3. He wrote this book in the 19th century. This book was written by him in the 19th century.