Câu hỏi :

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.

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

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

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

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

* Đáp án

C

* Hướng dẫn giải

Đáp án C

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