Help me!!

<p>This might sound like its been asked alotta time but pls help out.
Im now taking my A levels, i dunno if u guys noe it but i think its higher than wat SAT II is supposed to cover so my question is this:
Which prep books shud i get if all i want is lots of practice tests? I'll be taking Bio, Chem, and either Phy or Maths II.
I dun wanna make d wrong choice cos the books cost a lot in my country.</p>