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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. Regardless of our relationship, I commit to my investment with all my heart. 

B. I invested all my heart in our relationship; that is how I commit to it. 

C. I regarded our relationship as an investment since I had to commit to it with all my heart. 

D. I regarded our relationship as an investment that I had to commit with all my heart.