b. Combine the sentences using when or while. (Kết hợp các câu sử dụng when hoặc while.)
1. I was waiting for my taxi. My luggage was stolen.
→ I was waiting for my taxi when my luggage was stolen.
2. (The family went to bed.) They were sleeping. The heater broke down.
→ The family went to bed. While
3. We were watching TV. We got a message saying that our flight was canceled.
4. (The waiter gave us a menu.) We were ordering. People started running to the bathroom.
5. He was taking photos. A camel chased after him
The family went to bed. While they were sleeping, the heater broke down
We were watching TV when we got a message saying that our flight was canceled
The waiter gave us a menu. While we were ordering, people started running to the bathroom
He was taking photos when a camel chased after him
