听下面一段较长对话，回答以下小题。
【小题1】Why did Mark fail to go to work today?

A．He was ill last night.

B．He didn’t sleep last night.

C．His wife gave birth to a baby last night.

【小题2】What happened to Mark this morning?

A．He coughed a lot.

B．He felt very sleepy.

C．He had an accident on his way to work.

【小题3】What will the two speakers do tomorrow?

A．Have a celebration for Bill.

B．Visit Bill’s wife in the hospital.

C．Hold a farewell party for David.