阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
When you are thirsty, you can drink some green tea. It tastes good and it's very healthy. The Chinese ____ （know）about the benefits of green tea since ancient times, and they use ____ to treat everything from headaches to depression. They have ____（actual）been using green tea as a medicine for over 4,000 years.
Nowadays, there is scientific evidence of the health benefits of green tea. According to one study ____ （publish）in a cancer research journal, drinking green tea ____（reduce）the risk of some types of cancer ____ nearly sixty percent. USA researchers have also found that green tea may prevent the____（grow）of cancer cells. There is also new evidence ____green tea can help to destroy bacteria in our bodies. It is especially effective at getting rid of the bacteria on your ____（tooth）and keep them healthy!
According to the Chinese proverb, “It is ____（good）to go without food for three days than without tea for one.” So, in brief, you should definitely try a cup of green tea. It seems that it can only do you good.
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