- You look tired. so hard? - Yes, I for four hours and probably won’t finish until midnight.

- You look tired. so hard?
- Yes, I for four hours and probably won’t finish until midnight.

A. Have you worked/ have studied
B. Have you been working/ have been studying
C. Are you working/ have studied
D. Have you worked/ have been studying

Đáp án đúng: B

Giải thích:
Hành động “work”/ “study” bắt đầu từ quá khứ, kéo dài tới hiện tại và còn tiếp diễn (until midnight), có hậu quả ở hiện tại là “You look tired” => Chia hiện tại hoàn thành tiếp diễn.

Số bình luận về đáp án: 0

- You look tired. ____________ so hard? - Yes, I ____________ for four hours and probably won’t finish until midnight.

- You look tired. so hard?
- Yes, I for four hours and probably won’t finish until midnight.