题目内容：

阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

Eggs are great for breakfast and can1.(cook) in different ways. One topic of debate, however, is why brown chicken eggs usually cost more than white ones. According to Sharman Hickman, the director of community outreach and education for Hickman's Family Farms, it's first important to know the reason2.chickens have various egg colors.

The chicken breed(品种) and their genetics decide whether hens possess pigment genes, the natural chemical during the egg laying process that coats the egg and results3.a colored shell. Hens who produce colored eggshells tend to be4.(large) and require more feed and energy5.(create) that painted layer. Since those breeds cost more to feed, their eggs6.(be) more expensive.

Although eggs sometimes look and are priced7.(different) , it's important to know the color of the eggshell is related to the breed of the hen, not the egg's nutrient content, flavor profile,8.shell thickness, according to Malina Linkas Malkani, media spokesperson for the Academy of Nutrition and Dietetics. “9.(choose) between brown and white eggs is a matter of personal10.(prefer) ,” she says. Whatever you prefer, don't judge an egg by its shell color.