Paraphrase each sentence using the passive so that it means the same: 3. Leonardo da Vinci made first sketches of submarines in the late 1400s. 4. In 1890s people built the first real submarine.

Ответ:

• 3. First sketches of submarines were made by Leonardo da Vinci in the late 1400s.
• 4. The first real submarine was built in the 1890s.

Перевод:

• 3. Первые эскизы подводных лодок были сделаны Леонардо да Винчи в конце 1400-х годов.
• 4. Первая настоящая подводная лодка была построена в 1890-х годах.