Mark the letter A, B, C or Don your answer sheet to indicate the correct answer to each of the following questions It was not until he took off his dark glasses____________I realized he was

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Mark the letter A, B, C or Don your answer sheet to indicate the correct answer to each of the following questions

It was not until he took off his dark glasses____________I realized he was a famous film star

that

though

since

Giải thích

Đáp án B

Cấu trúc: It was not until + clause that + clause: Mãi đến khi…