听下面一段较长对话，回答以下小题。
【小题1】What do they eat for lunch and for supper?

A．A green salad for lunch and some beefsteak for supper.

B．Some bread and potatoes for lunch,and some meat for supper.

C．Some meat for lunch and a green salad for supper.

【小题2】How much meat do they want to buy?

A．About twenty pounds.

B．About two pounds.

C．About three pounds.

【小题3】What food will they buy?

A．A green salad and some potatoes.

B．Potatoes and beefsteak.

C．A green salad,some beefsteak and potatoes.