nam duong primary school Name: Class: . Bµi tËp Tõ vùng I. §iÒn vµo chç trèng. VD1: VD2: one book four books 1. 2. . 3. . 4. . Gv §inh ThÞ XuyÕn nam duong primary school 5. . 6. . 7. 8. . . 9. . 10. . Gv §inh ThÞ XuyÕn