问题描述：
9. —If you have any trouble , be sure to call me .
— _______ .
A. I am glad to hear that B. I will , thank you very much
C. I hope so D. Thank goodness
— _______ .
A. I am glad to hear that B. I will , thank you very much
C. I hope so D. Thank goodness
问题解答：
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