IV:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Trả lời câu hỏi dưới đây:
She had to pass all her exams, or _____ she would not have a holiday.
Đáp án là B . or else: nếu không, hoặc là…
Instead (+of): thay vì….; though: mặc dù; therefore: vì vậy