18. believes→beliefs　19. Bacteriums→Bacteria　 20. juwelry→jewelry

20. She brought out her juwelry and told me to take anything I wanted.

1~5 BBDDD　 6~10 BBCAA　 11~15 ABCCB　 16~20 DAACD　 21~25 DBDCD　

26~30 BADBD　 31~35 AABDC　 36~40 BACCB

Keys:1. I→me　 2. He and I 3. myself→I myself 4. me→I 5. his→one's　　　　　　　　　　　　　　　 　　　　　 6. No body→Nobody 7. me→mine8. whom→who 9. theirs→they　　　　　　　　　　　　　　　 　 　　10. her→she do11. No one→None 12. they (had)13. it's→its　　　　　　　　　　　　　　　　 　　　　　 14. where→which　15. which→where　 16. It→That 17. all what→what　　　　　　　　　　　　　 　　　　　　　 18. in his hand　19. This→That　　　 20. than that of Japan

Keys:1. homeworks→homework2. works→work　3. German→Germans　 4. furnitures→furniture　5. enter→entrance　 6. informations→information　7. two-thousand-words→two-thousand-word 　　　 8. Cooper→Coopers9. vegetable→vegetables10. neighbour→neighbours11. proud→pride　　 12. advices→advice13. meal→meals　 14. year→years15. grasses→grass　 16. advantages→advantage　17. succeed→success

19. Bacteriums cause various diseases.

18. No one knows what their believes are.

17. His new play was a great succeed.

16. Don't take advantages of others' weakness.

15. We saw some green grasses here and there on the hill.

14. Dickens wrote Oliver Twist in the year 1837 - 1838.

13. They had only three meal of soup every day.

12. You should follow his advices on how to learn a foreign language.