--Thank you for the MP3 you sent me.That's what I have been looking forward to.--____.

问题描述:

--Thank you for the MP3 you sent me.That's what I have been looking forward to.--____.
A.That's all right.
B.I'm glad you like it.

B.I'm glad you like it.:我很高兴你喜欢;
这是用来承接说话人的话,表示【自己很乐意把东西借给他】