听下面一段较长对话，回答以下小题。
【小题1】What are the speakers mainly talking about?

A．Changing bad habits.

B．What to eat for dinner.

C．The plan of losing weight.

【小题2】When did the woman have a checkup?

A．Today.

B．Last week.

C．Last month.

【小题3】What food does the man finally give the woman?

A．Dried banana chips.

B．A chocolate shake.

C．A hamburger.

【小题4】How can we describe the woman?

A．She is healthy.

B．She lacks determination.

C．She loses weight easily.