I believe from what I see that every sentence has been turned from present tense to past tense. One example could be Number 5- Instead of, 'Peter is going to take the package later.", it could be in past tense, as in Peter already took the package- "Later, Peter took the package."
Hope this helped. Let me know if you have any more questions!
I <u>have gone</u> to a welcome day at my new school. I <u>have put</u> my name down for the netball team, and Jon <u>has joined</u> the art club. We <u>have spoken</u> to our new teacher.