听下面一段较长对话，回答以下小题。
【小题1】How long did the man sleep last night?

A．For 3 hours.

B．For 4 hours.

C．For 7 hours.

【小题2】Why did the man get up early this morning?

A．It's a weekday.

B．He needs to finish his work.

C．He has to give a presentation.

【小题3】What can we learn about the man?

A．He is very tired now.

B．He often suffers from noise.

C．He had a party last night.