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

She wondered why did Jack so nervous when he saw Mary.

A. wonderedB. why did JackC. nervousD. saw

Đáp án đúng là: B

Chữa lỗi: did Jack look  Jack looked
Dịch: Cô ấy băn khoăn tại sao Jack trông lo lắng vậy khi anh ấy thấy/gặp Mary.