Answer:
The first part is:
live without something
get there (or here)
be away from home
worry about something
take something with you
pack a bag, rucksack or suitcase
miss someone
As for the email, it should be:
Hi Mum,
I'm in Chile. We got here at 9pm yesterday. The journey was fantastic but hard work. I look forward to bedtime every night!
I'm glad you packed my iPod in my bag because I can't live without my music! Sometimes, I worry about my dog. Is he OK without me? We'll be away from home for more than two weeks, but everything is fine.
I miss you.
Explanation:
Basically, try out all the words and see if they fit correctly grammatically, and the context is accurate.
