Mark the letter A, B, C, or D on you...

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. As tired as he was, he agreed to help me with my work.

B. Despite being very tired, he agreed to help me with my work.

C. Because tired he was, he agreed to help me with my work. 

D. Tired though he was, but he agreed to help me with my work.