III:
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:
It was _____ a difficult question that they couldn't explain.
Đáp án là A. Cấu trúc: It + be+ such + N + that + S+ V. : quá…. đến nỗi ….