1. Although we had given her an invitation card, she didn’t arrive. (show)
2. The scientists among countries in Asia have worked together on the project of technological development for a long time (ages)
3. The explorer said “ We invented some kinds of anti-aging pills to help people live longer last year.”
4. We left the building, then a tornado appeared suddenly and caused life loss and property damage. (After)
5. A team of archeologists dug an ancient tunnel with the aid of heavy machinery. (was)
1. Although we had given her an invitation card, she didn’t show up
2. The scientists among countries in Asia have worked together on the project of technological development for ages (ages)
3. The explorer said “ We invented some kinds of anti-aging pills to help people live longer last year.”
The explorer said they had invented some kinds of anti-aging pills to help people live longer the year before
4. We left the building, then a tornado appeared suddenly and caused life loss and property damage. (After)
After we left the building, a tornado appeared suddenly and caused life loss and property damage.
5. A team of archeologists dug an ancient tunnel with the aid of heavy machinery. (was)
An ancient tunnel was dugged by a team of archeologists with the aid of heavy machinery
