Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions The teacher turned up after we_____________for him for over 30...

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. waited

B. was waiting

C. have waited

D. had been waiting

* Đáp án

D

* Hướng dẫn giải

Đáp án D

Cấu trúc: had been + Ving (thì quá khứ hoàn thành tiếp diễn)

"Thầy giáo đã đến sau khi chúng tôi chờ thầy hơn 30 phút."

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