Mark the letter A, B, C, or D on you...

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
The marathon runner________for nearly one hour and a half when she________to the pavement.

A. has been running/ collapsed

B. were running /collapsed

C. had been running / collapsed

D. ran / had been