US nuclear envoy Christopher Hill arrives in Beijing for talks

The video features Mr Wu Dawei, who introduces himself and concludes with a farewell message.

Who is the main subject introduced in the video?

• Mr Wu Dawei

• Mr Chen Wei

• Mr John Smith

• Ms Li Na

What is the next step in Mr Wu Dawei's journey?

• He stays in the same place

• He goes on a new adventure

• He meets a new friend

• He returns home

What phrase indicates the conclusion of Mr Wu Dawei's journey?

• Farewell

• Until next time

• Goodbye for now

• See you later

What is the tone of the conclusion of Mr Wu Dawei's journey?

• Angry

• Indifferent

• Optimistic

• Sad

What is the primary focus of the video?

• A fictional story

• A historical event

• A personal journey

• A scientific discovery