He wanted to know shopping during the previous morning.
He wanted to know _____________shopping during the previous morning.
A. if we had been going
B. that if we had been going
C. we were going
D. that we were going

Đáp án A

Cấu trúc câu hỏi gián tiếp dạng Yes/No question: S + wanted to know if/ whether + S + V lùi 1 thì
Lùi thì QKTD -> QKHTTD và thay đổi trạng từ thời gian “yesterday morning” -> “the previous morning”
Anh ấy muốn biết liệu chung tôi có đi mua sắm suốt buổi sáng hôm trước hay không.