So I'm going through the sentence correction on the official guide and through the first 50 and have only missed 4.... however, i think these are pretty easy...i've looked ahead a little bit and they dont seem to get much harder....does anyone know of a good place to find a bunch of really tough SC questions with explanations? How about a comprehensive list of frequently appearing idioms(found a couple of lists but I'm still finding ones in questions not on the list)...thanks in advance for any tips
the sample questions in the official guide is ordered in increasing difficulty level.
try going backwards... that's what I did.












