单项选择题


Part A
You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.
Now look at Question 1.

What does the woman mean

A.Professor Zhang couldn’t be in the lab.
B.Professor Zhang forgot to turn off the lights in the lab.
C.Professor Zhang went home a long time ago.
D.Professor Zhang was the last one to leave the lab.