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. Why does the man suggest the woman go early

A.The road will be busy.
B.It will take a long time.
C.London will be crowded.
D.She can come back early.