一道12选10的并且用适当形式填空的题目.

一道12选10的并且用适当形式填空的题目.
请大家耐心一点.
leaf then large learn ones grow thick has mean first easy begin
Everybody loves oranges. They are sweet and juicy. They’re in sections. So it is 1___ to eat them.Some oranges do not have any seeds. Some have a 2___ skin, and some have a thin shin.
The orange tree is beautiful. It has a lot of shiny green
3___. The small white flowers smell very sweet. An orange
tree 4___ flowers and fruit at same time.
There were orange trees twenty million years ago. The
Oranges were very small, not like the 5___ today. The orange
tree probably came from China . Many different kinds of wild
oranges 6___ in China today. The Chinese started to raise(栽培）
orange trees about 4,400 years ago.
Farmers in other parts of Asia and the Middle East 7___ to raise oranges from the Chinese .8___ they taught Europeans. The Spanish planted orange trees in the New World (North and South America).They took them to Florida 9___ . Oranges are a very important crop in Florida today.
In English, orange 10___ both a fruit and a color. We use the name of the fruit for the color.
请问第6空到底是grow还是are growing?