he was the last man I wanted to see. I did all that I could to help him.A. AsB. Now thatC

问题补充：

he was the last man I wanted to see. I did all that I could to help him.

A. As

B. Now that

C. While

D. As though

答案：

A. As

B. Now that

(答案→)C. While

D. As though

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