Elizabeth the Tattletale (Sweet Valley Kids #47)

Elizabeth Wakefield catches Todd Wilkins cheating on a test!  She promises not to tell if he doesn't do it again.  But Todd can't help himself.  Cheating seems much easier than studying.  Then Mrs. Otis finds out what Todd is doing.  Did Elizabeth tattle on Todd?  Todd thinks so, and now their friendship may be ruined for good!