... to as the first grade. For the most part, students progress through twelve grades; however, some students who do not meet minimum requirements for a particular grade may be asked to repeat ... are printed in Chapter 7 on pages 503-504. , ,," I Astronomy "Ustan to part of a lecture In an astronomy class." bask ttet mat na 64 MOOEL TEST 1: PRETEST ... Sometimes the narrator will also provide the main topic. Did you understand? Try to anticipate part of the narrator'S introduction by viewing the intro-ductory screen. Here are some...