EXERCISE 6. MARK THE LETTER A, B, C, OR D TO INDICATE THE CORRECT ANSW...

Question

81. He regretted not ____ registered for military service last spring. A. have B. having C. having had D. having done

Accepted Answer

A. PHẦN TRẮC NGHIỆM 1. A 11. D 21. B 31. D 41. B 51. C 61. A 71. D 81. B 2. C 12. C 22. A 32. D 42. C 52. D 62. B 72. B 82. C 3. D 13. B 23. B 33. C 43. D 53. C 63. C 73. C 83. C 4. B 14. A 24. C 34.....

EXERCISE 6. MARK THE LETTER A, B, C, OR D TO INDICATE THE CORRECT ANSW...

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