Help!!!!!

Help, i'm stuck!!!!!!!

Tml is my hydro test but i just can't fully understand it. Arghh!!!!!

Studied for the past 2 days but feel like learnt nothing....

I already did bad in my first test, i don't want to repeat it again!!!!!!

Now left 15 hours for me, minus sleeping time, meal time, bathing time, lagging time (include now), i just got 6 hours ....

God bless me, hopefully i can do it and wait for next weekend to come
I WANT SHOPPING!!!!!!
Is a miracle that i didn't got out for the past 4 days, haha!!! Can't wait to go out

Ciaozzzzz