It is Sunday morning. Mother monkey and his child, little monkey, go shopping. They go to the supermarket ( 超市 ) near their house. Mother monkey wants to buy something to eat for her family. Little monkey wants to eat bananas. So mother monkey buys two kilos of bananas for him. Little monkey wants to drink coconut milk ( 椰子奶 ), too. So mother monkey buys a box of coconut milk for him. There are so many things in the market. Little monkey wants to buy many things. But mother monkey say "It's enough ( 足够 ), my dear. Let's go home."

？Questions: What do they buy?