He in the library for three hours and he needs a rest. A. had studied B. has been studying C. has studied D. is studying
He in the library for three hours and he needs a rest.
A. had studied
B. has been studying
C. has studied
D. is studying
He in the library for three hours and he needs a rest.
Đáp án đúng là: B
Giải thích: “for + khoảng thời gian” đi với thì hiện tại hoàn thành
Dịch: Anh ấy học ở thư viện 3 tiếng rồi và anh aasycaafn nghỉ ngơi.