<p>I’m doing all the Barron’s Verbal Book’s Sentence completions.</p>
<p>For every exercise (20 questions each exercise; 4 for exercises for each letter; 3 letters in all), I’m missing 3.</p>
<p>Basically: Every 20 I miss 3.</p>
<p>For CR, about how many questions should I expect to miss on SCs alone?</p>
<p>Thanks in advance!</p>