Question

2
Exercise 9. Change these sentences from active to passive voice
1. Lightning had knocked down several trees.
2. By then, Babbage had invented the computer.
3. His father had advised him not to borrow money.
4. They had already sent their objections in writing.
5. She had not yet taken any decision. (Begin with: No decision...)
6. Hadn't somebody explained to you the importance of the meeting?
7. What had the government done about this?​

Answer 1

Answer:

lightning had knocked down several trees

Explanation:

several trees were knocked down by the lighting