听下面一段较长对话，回答以下小题。
【小题1】Where does the conversation probably take place?

A．At home.

B．In a supermarket.

C．In a fish market.

【小题2】What is the woman going to buy?

A．Some fish.

B．Fish food.

C．A round bottle.

【小题3】What does the man advise the woman to do?

A．Swim around rocks.

B．Move the large rocks out of the tank.

C．Make sure there is enough air for the fish.

【小题4】Why should the woman get some plants according to the man?

A．To feed the fish.

B．To keep the water clean.

C．To make the tank look expensive.