Question 88: Through an             , your letter was left unanswered.

A. overcharge                    B. overtime                       C. oversight                       D. overtone

Question 89: There should be an international law against             .

A. reforestation                 B. forestry                         C. afforestation                 D. deforestation

102 CÂU TỪ VỰNG TỪ ĐỀ CÔ PHAN ĐIỆU