Bài Làm:
| 1 | A | 11 | A | 21 | A | 31 | C |
| 2 | A | 12 | A | 22 | D | 32 | C |
| 3 | D | 13 | A | 23 | A | 33 | C |
| 4 | D | 14 | C | 24 | D | 34 | C |
| 5 | A | 15 | B | 25 | B | 35 | D |
| 6 | B | 16 | C | 26 | D | 36 | C |
| 7 | A | 17 | B | 27 | B | 37 | D |
| 8 | B | 18 | B | 28 | D | 38 | D |
| 9 | A | 19 | D | 29 | C | 39 | B |
| 10 | B | 20 | B | 30 | B | 40 | C |