问题补充：
–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 have no trouble.
D. I will think it over.
答案：
A. I am glad to hear that.
(答案→)B. I will. Thank you very much.
C. I have no trouble.
D. I will think it over.
解析：句意：如果你有麻烦，一定要给我打电话。我回的。非常感谢。对于别人的盛情帮助一定要表示感谢，B项符合语境；I am glad to hear that.意为“听到这点我很高兴”，把别人对你的帮助当作理所应当不妥；I have no trouble. 为汉语的思维习惯，也不礼貌；I will think it over.显得过于做作，也不妥；故选B。
