Question

Ben's eyes hurt: he has been working/has worked on a computer since morning. ​

Answer 1

Ben's eyes hurt: he has been working on a computer since morning. ​

Используем Present Perfect Continuous для описания действия, которое началось и закончилось в прошлом, а результаты этого действия очевидны в настоящем (у Бена болят глаза из-за того, что он с самого утра работает за компьютером)

Answer 2

Ответ:

Ben's eyes hurt: he has been working on a computer since morning

Answer 3

Both "has been working" and "has worked" can be used in this sentence, but they convey slightly different nuances:

1. "Ben's eyes hurt: he has been working on a computer since morning."

   • This suggests that Ben started working on the computer in the morning and is still working on it at the time of speaking. It emphasizes the ongoing nature of his work and the possible cause of his eye pain.

2. "Ben's eyes hurt: he has worked on a computer since morning."

   • This suggests that Ben worked on the computer in the morning, but it doesn't necessarily imply that he is still working on it at the time of speaking. It emphasizes the fact that he spent the morning working on the computer, which may have led to his eye pain.

Both options are grammatically correct, so you can choose the one that best fits the context of your conversation.