综合填空（共10小题；每小题1分，满分10分）
根据短文内容，用方框中所给词语的适当形式填空，使文章通顺、完整。（每词限用一次）

leaf, then, large, learn, ones, grow, thick, flowers, means, took, easy, our

 
Everyone loves oranges. They are sweet and juicy. They’re in sections (分瓣), so it is ________ to eat them. Some oranges do not have any seeds. Some have a _________ skin(果皮), and some have a thin skin.
The orange tree is beautiful. It has a lot of shiny green _______. The small white flowers smell very sweet. An orange tree has _______ and fruit at the same time.
There were orange trees twenty million years ago. The oranges were very small, not like the ________ today. The orange trees probably came from China. Many different kinds of wild oranges _________ in China today. The Chinese started to raise orange trees about 4,400 years ago.
Farmers in other parts of Asia and the Middle East ________ to raise oranges from the Chinese. ________ they taught Europeans. The Spanish planted orange trees in the New World (North and South America). They_________ them to Florida first. Oranges are a very important crop to Florida today.
In English, orange _________ both a fruit and a color. We use the name of the fruit for the color.