Преобразуйте следующие предложения в Passive Voice

1. James Watt invented the steam engine.
2. We use software to tell the hardware how to perform a task.
3. My friend has just bought a new car.
4. They will have installed these computers by next Monday.
5. They are still writing the test.

1. The steam engine was invented by James Watt. 2. The software is used by us to tell the hardware how to perform a task. 3. A new car was just bought by my friend. 4. These computers will have been installed by next Monday by them 5. The test is still being written by them.