题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

It seems that Chinese people have always loved to discuss 1. differences between northerners and southerners. Now, another difference has drawn wide attention: the way northerners and southerners shop 2. food at markets.

People from southern China normally buy what they need for just one or two meals at a time. It’s normal for3.to buy just half a Chinese cabbage, two 4. (potato) and 25 grams of beef at a time. 5., a person may be laughed at 6. they do this in the north. Instead, buying enough vegetables and meat for a week 7. (be) normal.

The difference could be because of the different climates. Food can 8.(keep) for a long time in the north, as it’s 9. (usual) cold and dry there. Many northerners have the habit of 10. (store) food for a long time. But due to the hot and wet weather in the south, southern Chinese people prefer to buy just enough food for one meal or one day. Otherwise, the food may go bad.

Maybe these debates about different customs help us to understand each other better.