A) 单词类
1. ask answer
2. forget remember
3. after before
4. none all
5. buy sell
6. down up
7. open close
8. late early
9. neither both
10. sleep wake
11. far near
12. come go
13. borrow lend
14. hate like / love
15. cry laugh 16. back front
17. best worst
18. better worse
19. busy free
20. bad good
21. empty full
22. easy hard / difficult
23. different same
24. closed open
25. cheap dear / expensive
26. comfortable uncomfortable
27. wrong right
28. left right
29. safe dangerous
30. rich poor 31. hot cold
32. cool warm
33. dry wet
