I.
1/ the
2/ cloves
3/ will happen
4/ keen
5/ garnish
6/ which
7/ meteorite
8/ from
9/ look
10/ lived
11/ account
12/ conserve
II.
1/ preservation
2/ healthily
III.
1/ not to make
2/ is raining
3/ has been translated
4/ do
IV.
a/ They celebrate Halloween on October 31st.
b/ Yes, they do.
c/ They say "trick-or-treat" when knocking on someone's door.
d/ They often have costume parties and give prizes for the best costumes.