12. c
(para 2-2d)
13. e
(para 2-11b(1))
14. d
(para 2-3b)
15. c
(para 2-4a)
16. d
(para 2-9a(1))
(para 2-9a(3)); Table 2-2)
17. b
(Table 2-2; para 2-9a(3))
18. a
(Table 2-2; para 2-9a(3))
19. a
(Table 2-1; paras 2-4 & 2-5)
20. b
(Table 2-1; para 2-9a(1))
21. a
End of Lesson 2
MD0728
2-15