单项选择题

Directions: In this section, you will hear 8 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the 4 choices marked A, B, C and D, and decide which is the best answer.
Questions 1 to 5 are based on the conversation you have just heard.

A. It is difficult to identify.
B. It has been misplaced.
C. It is missing.
D. It has been borrowed by someone.