She was anxious about the interview because she failed three interviews before.

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Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions

She was anxious about (A) the interview because (B) she failed (C) three interviews before. (D)

about

because

failed

before.

Giải thích

Đáp án : C

“failed” -> “had failed”: dùng thì quá khứ hoàn thành, diễn tả hành động xảy ra trước một hành động nào đó trong quá khứ