Mark the letter A, B, C or D on...
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.
She ______ on her computer for more than two hours when she decided to stop for a rest.
A. has worked
B. has been working
C. was working
D. had been working
Câu hỏi trên thuộc đề trắc nghiệm
30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải !!