Computer science by my brother since June. A. had been studied B. has been studied C. was studied D. is studied
Computer science by my brother since June.
A. had been studied
B. has been studied
C. was studied
D. is studied
Đáp án đúng là: B
Giải thích: “since” đi với thì hiện tại hoàn thành
Dịch: Khoa học máy tính đã được anh trai tôi nghiên cứu từ tháng Sáu.