II. Vocabulary and Grammar

I didn't meet him right away he had to talk to his boss first

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Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

I didn't meet him right away ____ he had to talk to his boss first.

while

if

because

or

Giải thích

Đáp án C

Dịch: Tôi đã không gặp anh ta ngay lập tức vì anh ta phải nói chuyện với ông chủ của mình trước.