题目内容：

阅读下列材料，在空白处填上适当的内容或括号内单词的正确形式(不多于3个词)。

Organic food is very popular these days, but can also be very expensive. Parents of young children, and even some pet owners, will pay high prices 1. organic food. But many others think organic food is just 2. waste of money.

There is one main 3.(differ) between organic and non-organic food. Organic farms do not use agricultural chemicals such as pesticides that stop insects from damaging crops.

In many 4.(country), foods that claim to be organic must have special labels that guarantee they 5. (grow) organically.

Some people think organic also means “locally grown”, and 6.(original) this was true. At first, only small companies produced these products. But later, big food companies also began selling organic products. Small organic food companies found it difficult 7.(compete) with these big companies, and many didn’t stay in business much 8.(long).

Many farmers and consumers believe organic food is safer and more nutritious. They think agricultural chemicals can cause serious illnesses like cancer, 9. there isn’t much evidence proving  this is true. However, recent studies have shown that eating organically -grown produce 10.(reduce) your chances of developing heart disease. Therefore, we should be “better safe than sorry” when it comes to what we eat.