—Fool I am I will not believe you any more．You have been promising a hundred times!—But

问题补充：

—Fool I am, I will not believe you any more．You have been promising a hundred times!

—But Mum, this is the last time．

A. as

B. although

C. if

D. so

答案：

(答案→)A. as

B. although

C. if

D. so

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