Yes. The safety aspects of the car and also the track have been vastly improved.
You are in the present and can make decisions about what to do or to change. You can't change the past.
no
No one can undo the past. what's past is past. But one could make things better in the present.
past: I was; you were; he/she/it was present: I am; you are; he/she/it is
There is a past, present, and future. There was a past; there is a present and there will be a future.
Have is present tense. The past tense is had.
what is present past
Past - was Present - is Future - will be
Present - am. Past - was and were.
past: I did, you did, he/she/it did; present: I do, you do, he/she/it/does
Split it into two sections: first talk about the past as you will be able to gather more information that the present and all the good memories would be stored in the past, after you have talked about this move onto the present the here and now.
Present tense - clean. Past tense - cleaned. Present tense - work. Past tense - worked. Present tense - play. Past tense - played.