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
Trả lời
Chọn D
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
Chọn D