The mother asked her son .
The mother asked her son _______.
A. where he has been
B. where he had been
C. where has he been
D. where had he been
Đáp án B
Cấu trúc câu hỏi gián tiếp dạng Wh-question: S + asked sb + wh-question + S + V lùi 1 thì
Đáp án B
Dịch nghĩa: Bà mẹ hỏi con trai anh ấy đã đi đâu
