Mary knew how busy I was. She offered to help me.
A.A.
Because Mary knew my business, she offered to help me.
B.B.
Knowing how busy I was, Mary offered to help me.
C.C.
Mary knew how I was busy and offered to help me
D.D.
Having known how busy I was, Mary offered to help me.
Đáp án và lời giải
Đáp án:D
Lời giải:
D. Biết tôi bận rộn như thế nào, Mary đề nghị giúp tôi.