Compound nouns!

Hello!
Can somebody help me with this exercise?
Put one word in each box to form three compound nouns:
…test …fall
pressure melon
donor skiing

…brief …paper
suit plastic
book hand
Thank you for your time and willingness!

in fact it is :…test/pressure/donor
…fall/melon/skiing
…brief/suit/book
… paper/plastic/hand

Hi Antonella,

I am a bit confused, is your first post wrong, then? It does not make much sense so, I guess it is.
Anyway, here is what I have come up with:

blood - test/pressure/donor – blood test, blood pressure, blood donor
water - fall/melon/skiing – waterfall, watermelon, waterskiing
case - brief/suit/book – briefcase, suitcase, bookcase
bag - paper/plastic/hand – paper bag, plastic bag, handbag

These are all nouns – hope that is what you needed.