-If you have any trouble, be sure to call me. -______________.
A．I will think it over.
B．I have no trouble.
C．I am glad to hear that.
D．I will. Thank you.
答案：D
试题分析：I will think it over.我要再想想；I have no trouble. 我没事；I am glad to hear that .很高兴听到那个消息；I will. Thank you.我会的，谢谢你。句意：如果你有什么麻烦，一定要告诉我。结合语境可知选D。 考点：考查：交际用语