My teacher arrived after I ____________ for him for ten minutes have waited

Câu hỏi :

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

A. was waiting

B. have waited

C. had been waiting

D. waited 

* Đáp án

B

* Hướng dẫn giải

Đáp án B

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