-
Câu hỏi:
I fell asleep while I _______________ my homework last night.
-
A.
was doing
-
B.
have done
-
C.
did
-
D.
is doing
Lời giải tham khảo:
Đáp án đúng: A
QKĐ while QKTD
Hãy trả lời câu hỏi trước khi xem đáp án và lời giải -
A.
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