Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. She is to pass the exam. She did it really well.Đoạn văn10/40Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. She is to pass the exam. She did it really well.certaintyuncertaincertainlycertainGiải thíchD. certain