1. The tourists __________ the Buckingham Palace when it started to rain. 2. The security guard __________ the car park using CCTV at that time. 3. There was a big fire while the workers __________ the cathedral. 4. I beg your pardon – what did you say? I __________. 5. When you entered the room, we __________ the importance of keeping traditions alive. 6. Peter __________ on the bus when we arrived at the Colosseum? 7. While my friends __________ a documentary about ancient castles, I was playing video games. 8. The children __________ for their history test when the lights went out. 9. The host __________ some traditional Italian dishes while the guests were chatting. 10. __________ you __________ home at 7 o’clock yesterday evening?

----- Nội dung ảnh -----
1. The tourists __________ the Buckingham Palace when it started to rain.
2. The security guard __________ the car park using CCTV at that time.
3. There was a big fire while the workers __________ the cathedral.
4. I beg your pardon – what did you say? I __________.
5. When you entered the room, we __________ the importance of keeping traditions alive.
6. Peter __________ on the bus when we arrived at the Colosseum?
7. While my friends __________ a documentary about ancient castles, I was playing video games.
8. The children __________ for their history test when the lights went out.
9. The host __________ some traditional Italian dishes while the guests were chatting.
10. __________ you __________ home at 7 o’clock yesterday evening?