2d.Huge octopus-> Con bạch tuộc khổng lồ 

3a.Climb the mountain-> Leo núi

4f. everyone else (listen) to the guide -> mọi người nghe hd

5b.accidentally knock it down-> vô tình đánh sập nó

6e.the famous artist(paint)-> hoạ sĩ nổi tiếng vẽ

2. We swum in the sea while we were seeing a huge octopus 

3. I broke my leg while I was climbing the mountain 

4. My brother talked while everyone else were listening to the guide

5. I admired a sculpture while I was accidentallying knock it

6. People took photos while the famous artist was painting