Which one of the following is an example of passive voice?

Unit 21                                                                It Was a Great Day!

A. Listen and read.

Lessons 1-2

Last January 

I went to a cub camporee. It was my first visit to a cub camporee and it was my first time away from home! A camporee is a

 gathering of cubs from different parts of Bangladesh. Cubs all over the world have their own camporees.

The cub camporee took place in Sreemangal under Moulvibazar district. Toget there, we travelled from Dhaka to Sreemangal by  train. We arrived in the morning, so the weather was nice. We walked to our camp from the train station.

There were 10 of us and two leaders. We were a big group, so we didn't take any rickshaws. We walked together in our group. It wasn't very far. At the camp, we cleaned up the area, set up our tents and prepared our breakfast. After breakfast, we p

layed games with cubs from other parts of Bangladesh. Then we had lunch. We cooked rice and chicken. In the afternoon and evening, we sang songs and recited poems. It was fun! At night, we slept in our tents.