问题详情

Directions: In each of the following groups of words,there arc four underlined letters or letter combinations
marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in
pronunciation. Mark your answer by blackening the corresponding letter on the answer sheet.
1.
A. trail
B. certain
C. again
D. faint请帮忙给出正确答案和分析，谢谢！