15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 13)

While working as a travel agency, my elder brother specialized in arranging tours of

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

While working as a travel agency, my elder brother specialized in arranging tours of the Mekong Delta for foreign tourists.

a travel agency

While

specialized in

tours of

Giải thích

Đáp án A

A travel agency => a travel agent