Question

Change the voice :- You must sing a song . This book contains 70 pages . chose your book . Don't light the lamp. It's time to write a letter.

Answer 1

1. A song must be sung by you.

2. 70 pages are contained by this book

3. let the book be chosen.

4. Let the lamp not be lighten.

Answer 2

Answer:

You must sing a song .

-------> A song must be sung by you.

This book contains 70 pages .

-------> 70 pages are contained by this book.

Choose your book .

-------> You are ordered to choose your book.

Don't light the lamp.

-------> You are ordered not to light the lamp.

It's time to write a letter.

-------> It's time to a letter be written.

Explanation:

I just tried these.

Hope my answers will help you.