Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 24)

Mary knew how busy I was. She offered to help me.

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Mary knew how busy I was. She offered to help me.

Because Mary knew my business, she offered to help me.

Knowing how busy I was, Mary offered to help me.

Mary knew how I was busy and offered to help me.

Having known how busy I was, Mary offered to help me.

Giải thích

Đáp án C