听下面一段独白，回答以下小题。
【小题1】How long do Dereck and Beverly usually work in a day?

A．For 10 hours.

B．For 12 hours.

C．For 16 hours.

【小题2】What do they usually do when they finish filming and taking photographs?

A．Dereck usually writes while Beverly looks at her photographs.

B．Beverly usually writes while Dereck looks at his photographs.

C．They write and look at their photographs together.

【小题3】Where do Dereck and Beverly usually sleep at night?

A．In a car.

B．In a tent.

C．In a house,

【小题4】What does Beverly think of the wild animals?

A．They are something to look at.

B．They are very important.

C．They can teach people a lot.