Question

IV. Change the voice of these sentences:
1. He has helped these children.
2. The energy of steam was discovered by James Watt.

Answer 1

Answer:

1. THE CHILDREN ARE HELPED BY HIM
2. JAMES WATT DISCOVERED THE ENERGY OF STEAM

Answer 2

Answer:

1) These Childten had been helped by him

2)James Watt discovered the energy of steam