Indirect / Embedded Questions

http://www.learnamericanenglishonline.com/Orange%20Level/Orange_Level_Quiz_5_Embedded_Questions.html

http://tienganh.net.vn/game/indirect-questions.html

http://fdslive.oup.com/www.oup.com/pdf/elt/catalogue/0-19-433810-X-a.pdf

http://esl.about.com/library/quiz/bl_indirect.htm