1C, 2A, 3D, 4A, 5A, 6C, 7B, 8B, 9D, 10A, 11C, 12A, 13C, 14B, 15B, 16C, 17(1C,2D,3A, 4B,5G), 18(1E,2,B, 3D, 4C, 5A), 19(1B, 2D, 3F, 4E, 5G, 6H, 7A

7. Gần mực ………g. mựch. thì rạngi. thì tốij. thì sángk. bà conĐáp án: 1c, 2a, 3d, 4a, 5a, 6c, 7b, 8b, 9d, 10a, 11c, 12a, 13c, 14b, 15b, 16c, 17(1c,2d,3a, 4b,5g), 18(1e,2,b, 3d, 4c, 5a), 19(1b, 2d, 3f, 4e, 5g, 6h, 7a.)