单项选择题
[听力原文]
M: What are those things in our suitcase There aren’t any clothes at all. Where have you put them
W: Oh, no. This is not our suitcase.
M: What do you mean
W: The old lady must have taken ours by mistake. Just now she was sitting next to us at the restaurant.
A. An old lady took the couple’s suitcase by mistake.
B. An old lady stole the couple’s suitcase at the restaurant.
C. The old lady took their clothes by mistake.
D. The woman forgot to put clothes in their suitcase.