Help with a writing section question...

<p>"Not very particular in(A) nesting sites, house wrens may nest in birdhouses, mailboxes, building crevices-even in the pockets of hanging laundry. </p>

<p>I was wondering what should it be replaced with?
Also does anyone know a good site for SAT grammar? I've tried the SAT Barrons Workbook, RR, and PR but they weren't any good. thx</p>

<p>"Not very particular in its choice of nesting sites" would be a good example of a replacement.</p>