_________ photos when you were on holiday?
A. Have you taken
B. Do you take
C. Were you taking
D. Did you take
Câu trả lời là: D là đáp án đúng
Công thức nguyên hàm và tích phân
_________ photos when you were on holiday?
A. Have you taken
B. Do you take
C. Were you taking
D. Did you take
Câu trả lời là: D là đáp án đúng