When did you first know him?
Câu hỏi
Nhận biếtWhen did you first know him?
Đáp án đúng: A
Lời giải của Tự Học 365
A. How long have you known him?When did + S + first + V? = How long have/has + S + P2? : làm gì được khoảng thời gian bao lâu.
Dịch: Bạn biết anh ấy bao lâu rồi?
B. How long did you know him?
Sai cấu trúc, how long + HTHT.
C. How many times have you known him?
Sai cấu trúc, cấu trúc này hỏi “bao nhiêu lần”.
D. How long did you know him for the first time?
Luyện tập
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