The police have concluded tentatively that the explosion was caused by a bom

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Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions
The police have concluded tentatively that the explosion was caused by a bom

differently

hesitantly

certainly

temporarily

Giải thích

Đáp án C

tentatively (adv): không qủa quyết, không chắc chắn >< certainly (adv): chắc chắn

Các đáp án còn lại:

A. differently (adv): khác

B. hesitantly (adv): do dự

C. temporarily (adj): tạm thời