1. I haven't seen Mai for three years.
The last time..................................
2. I don't think it's a good idea to go to that party.
If I.......................................................
3. It's a long time since I ate out.
I have....................................................
4. An old shipwreck has been discovered by divers.
Divers.............................................................
5. Minh gave me a lift to the train station.
Minh drove..........................................................
6. If you often go swimming, you will keep fit.
Swimming will........................................................