听下面一段较长对话，回答以下小题。
【小题1】How does the man probably sound in the beginning?

A．Very excited.

B．A bit angry.

C．A little surprised.

【小题2】How many people will go to Shanghai?

A．One.

B．Two.

C．Three.

【小题3】What is the man worried about?

A．The environment on the train.

B．The cost of the business trip.

C．The public transportation in Shanghai.

【小题4】What does the man intend to do at the end of the conversation?

A．Talk to his assistant.

B．Reserve a hotel room.

C．Leave early.