1. Change the voice : I was astonished at his behavior.

જવાબ: Option B

Given sentence is in simple past tense and it is in passive voice. Rule : Subject + V3 + Other agents

2. Change the voice : What can I say about her?

જવાબ: Option B

3. Change the voice : They must complete the project before the exams.

જવાબ: Option D

be + v3 without shifting other words

4. change the voice : You are forbidden to make a scene.

જવાબ: Option A

5. Change the voice : A grocery store was inaugurated by Raju.

જવાબ: Option A

6. Change the voice : We visited the zoo of Jaipur on Last Sunday.

જવાબ: Option B

7. Change the voice : Someone will finish the project by 3:00 pm.

જવાબ: Option B

will be + v3

8. change the voice : The farmer's wife collected a fresh batch of eggs.

જવાબ: Option A

9. change the voice : Let me partake of a little wine with them.

જવાબ: Option D

10. Change the voice : They should avoid junk food in order to stay healthy.

જવાબ: Option C

be + v3 be avoided